Spring into Adventure at CGK Summer School for Elementary Students!
July 18 - August 27, 2025
Join us for a fun-filled summer break with activities like Art Day, exciting bus trips, and more!
Choose your favorite programs and participate in as little as one day!
CGK International School is an international school with two campuses in Naka-ku, Yokohama, with more than 280 students.
Since its opening, CGK has emphasized inquiry-based learning and is IB PYP World School in our preschool and elementary school.
In this Summer School, students will engage in a variety of fun and educational activities while nurturing their ability of self-expression, critical thinking skills, and spirit of inquiry.
Please join the CGK program with CGK students.
Details of CGK Summer School
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Age
Grade 1 to 6 Students
*Required to have experience of English learning.
*We assume that students have a basic level of conversational English. If you have any questions or uncertainties, please consult with us in advance.Dates
July 18 - August 27, 2025 (24 Days)
*You can apply on a daily basis. Please select as many days as you like.
*Will close as soon as it reaches capacity.Location
CGK International School - Kannai Campus
(2-25-2 Minaminakadori, Naka-ku, Yokohama)Regular Course
10:00am - 2:00pm (CGK Students 7,700 yen (Including Tax), Regular Students 8,800 yen (Including Tax))
*Please enter after 10:00am and leave by 2:00pm
*For CGK Afterschool students, afternoon lessons will be available on the same days as their regular afterschool days, so students can stay until 7pm by applying for Regular Course at no extra charge after 2:00pm.Field Trip
10:00am - 4:00pm (CGK Students 12,100 yen (Including Tax), Regular Students 13,200 yen (Including Tax))
*Fees include entrance fee, bus fee, etc. This fee remains the same even if there are changes to the program due to rain or other circumstances.
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Morning Extended Care
From 9:00 to 10:00am or from 9:30 to 10:00am
550 yen/30 minutes (Including Tax)*Not available on train field trip days.
Phone
What to Bring
Backpack, Lunch, Water bottle, Indoor shoes (Not required on train field trip days), Suica/Pasmo (required on train field trip days), Hat (optional for field trip days), Foldable umbrella (optional for field trip days)
*Please place your lunch orders directly with the designated lunch provider.(From 690 yen per meal, tax included / Not available on field trip days and August 12(Tue).)
*Orders must be placed at least one week in advance of your child's attendance date.
Instructions for ordering will be provided after your application is complete.Limit Number of Students a Day
[Regular Course & Field Trip by Train] Approximately 45 students
[Field Trip by School Bus] Approximately 32 studentsHow to Apply
We accept applications through our LINE account. While you can still apply using the old form, registering via LINE allows you to receive daily photos of the lessons.
*Reservations must be made by 5:00pm on the business day before.(For Monday bookings, the deadline is 5:00pm on Friday.) If you submit the form after the deadline, please wait for a confirmation via LINE or phone on the next business day. Your reservation will be confirmed only after you receive our reply.
*Cancellation up to 7 days in advance: Full refund
Cancellation within 6 days of the reservation: No refund
2025 CGK Summer School
Program Calendar
| July 18 (Fri) | Hamagin Space Center - Field Trip by School Bus |
A fun day learning about science through interactive exhibitions, a planetarium, and play.
Students have the opportunity to visit the Hamagin Space Museum. While enjoying the Space Museum and planetarium students will have the chance to discuss the experience and share their opinions about what they see. *Please prepare a lunchbox as we will be eating as a group at Hamagin. We will take the CGK bus from CGK Kannai Campus. |
|---|---|---|
| July 22 (Tue) | One Line Self Portrait With Ms. Samantha |
Challenge yourself to complete a portrait without taking your pencil off the paper!
Explore the world of one line art and complete a self portrait and/or portraits of other people without lifting your pencil off the paper. Students can paint or colour them and present their work to the class. |
| July 23 (Wed) | Dangerous Animals With Mr. James |
Discover the fascinating world of dangerous animals with our special guest teacher Mr. James!
Mr. James will discuss various features of different animals that make them well adapted for hunting and survival. Students will take part in various activities that will deepen their understanding of the subject matter, and create their own original predator that they can present to the class. |
| July 24 (Thu) | Safari Day With Mr. Lam |
Explore the animal kingdom and share your knowledge about a wide variety of animals.
After the initial discussion, work with your classmates to turn one wall into a CGK safari! Students will paint, craft, and create as many animals as they can to add to the safari wall. |
| July 25 (Fri) | What If Kids Designed A City? With Ms. Nina |
Let your imagination and creativity run wild designing your own original city!
Ms. Nina will join us to discuss various aspects of how cities are designed. Through looking at cities in Japan and comparing them with cities in her home country of England, students can start to think about different designs to incorporate into their city plans. After finishing the initial discussions, students will form teams and plan out their cities, discussing unique aspects of its design and debating what to include. Upon finishing their plan they will then get the opportunity to create a 3D model of it out of craft materials before presenting their plan and model to their peers. |
| July 28 (Mon) | Create Your Own Wallpaper With Ms. Sayuri |
Using real wallpaper and different types of paint let your imagine run wild and bring your creative ideas to life!
Ms. Sayuri will join us to lead a big art extravaganza day where students will use paint and wallpaper to create original art that can decorate the walls of the school. After an initial discussion students will work in teams and plan out their ideas. Communication will be key to make sure everyone is on the same page and using their large canvas effectively to create amazing eye catching art. |
| July 29 (Tue) | Create An Original Mascot With Mr. Justin |
Dive into the world of mascots and discuss what makes them successful, eye-catching, and effective before applying what you learn to your very own original mascot!
Students will discuss what makes a good mascot and look at examples from Japan and around the world. They will then work in groups or individually to create their very own mascot, develop its back story, and create additional merchandise that they will then present to the class. |
| July 30 (Wed) | Original Music With Mr. Matt |
Create your own original music using a variety of instruments and technology!
CGK’s music teacher, Mr. Matt, will lead a class all about creating your own original music. Using percussion instruments and a music making app, students will work in small teams to create their own music through trial and error before sharing their creation with their peers. |
| July 31 (Thu) | Shaved Ice Challenge With Ms. Anjie *Very limited |
Create your own shaved ice and sample different types from around the world!
Join Ms. Anjie for a fun-filled summer session where kids will explore and create their own version of shaved ice treats from around the world! From Halo-Halo to Kakigori, they’ll learn about different flavors, experiment with toppings, and design their own cool creations. |
| August 1 (Fri) | Tondemi Space Athletic - Field Trip by School Bus *Very limited |
Enjoy a fun filled active day with friends and work on their fine motor skills!
Students will get the chance to run wild and have a super fun filled day trying out all the facilities at Tondemi Space Athletics Center. *Please prepare a lunchbox as we will be eating as a group in a local park. We will take the CGK bus from CGK Kannai Campus. PLEASE BE AWARE OF HEIGHT RESTRICTIONS(110cm and up) |
| August 4 (Mon) | Reptile Day With Ms. Renae |
Explore the world of reptiles with special guest teacher Ms. Renae!
Through discussion and various activities students will have the chance to dive deep into the varied and fascinating world of reptiles! |
| August 5 (Tue) | Egg Drop |
Work together using the power of science to protect an egg!
Investigate the various forces that exist in physics and apply them to design a device that can protect an egg dropped from the top of a ladder onto the floor. |
| August 6 (Wed) | Vehicle Building |
Discover the science behind propulsion and create unique vehicles that move.
Students will look at examples and discuss different ways they can build their own original vehicles out of classroom materials that move under their own power. Students will present their vehicles and race them against other teams. |
| August 7 (Thu) | Bridge Battle |
Work together to design and build a bridge that can span a gap and withstand some weight.
Working in groups, students will discuss, research, plan, and design ways they can build a bridge that spans a gap between two tables. Groups are free to choose a building style and material that works for them. During presentation time the bridges will be subjected to various stresses to see how they hold up and who made the strongest bridge. |
| August 8 (Fri) | Water Rockets *Very limited |
Discover the science behind bottle rockets.
Explore the physics behind bottle rockets and build your own to blast off at Yokohama park! *There is a possibility students may get a little wet so please prepare a change of clothing if you would like. |
| August 12 (Tue) | Marble Run |
Work together to create an original marble run.
Through looking at examples, discussing ideas, planning, and researching as a group, students will create their own original marble runs and share their results with the class. |
| August 18 (Mon) | Cardboard Arcade |
Design and build your own original game!
What can you make out of cardboard and classroom supplies? Through planning, discussion and team work let your imaginations run wild and create games we can all enjoy! |
| August 19 (Tue) | Miraikan - Field Trip by School Bus *Very limited |
Explore the latest innovations in the world of science and have exciting and interesting discussions with classmates.
Students will have the chance to explore the main exhibitions and the special exhibition. *Please prepare a lunchbox as we will be eating as a group at Miraikan. We will take the CGK bus from CGK Kannai Campus. |
| August 20 (Wed) | 3-Day Filmmaking Challenge: You're the Director! |
Learn about important aspects of telling a story through video and see your creation come to life over the course of three days.
Students will discuss what aspects they think are important when telling a story using a video format. Using what they have learned they will work in groups to create their own short movie idea and plan out what they will do over the course of the three days. This will include the storyline itself, dialogue, props, costumes and other areas that need consideration. During presentation time each group can share their ideas and receive feedback from their peers. On day two students will get to work on filming and editing their movies and will also have the chance to create any additional items they may need for their story to come to life. Day three is the final day to shoot any remaining scenes and do any additional editing. At the end of the day we will have the opportunity for each group to share their movie with everyone. *One-day participation is possible, but we recommend attending all three days. |
| August 21 (Thu) | ||
| August 22 (Fri) | ||
| August 25 (Mon) | Asobimare - Field Trip by Train *Very limited |
Enjoy a fun filled day at Asobimare.
New students and old friends can bond while playing in English at the super fun indoor play center Asobimare. *We will be taking the train. Please make sure your SUICA/PASMO is charged and meet at Yokohama Station North Gate. We will come back to CGK Kannai Campus together. |
| August 26 (Tue) | Floating Ship Challenge |
Learn about density, buoyancy, and how giant ships float on water through hands-on experiments!
After discussing their initial thoughts and forming their own hypotheses students will test various items around the class to confirm if they sink or float when put on water. After discussing their findings students will engage in various activities to further their understanding, before working in teams to plan and construct their own ship to test if it floats or sinks! |
| August 27 (Wed) | Sea Paradise - Field Trip by School Bus |
A relaxing and fun day exploring Yokohama Hakkeijima Sea Paradise Aquarium.
Student's can spend the day exploring the aquarium, watching animal shows, and traversing the biggest 3D maze in Japan (weather permitting), all while discussing the experience and sharing their opinions about what they see. *Please prepare a lunchbox as we will be eating as a group at Sea Paradise. We will take the CGK bus from CGK Kannai Campus. |
| July 18 (Fri) |
|---|
| Hamagin Space Center - Field Trip by School Bus |
A fun day learning about science through interactive exhibitions, a planetarium, and play.Students have the opportunity to visit the Hamagin Space Museum. While enjoying the Space Museum and planetarium students will have the chance to discuss the experience and share their opinions about what they see. *Please prepare a lunchbox as we will be eating as a group at Hamagin. We will take the CGK bus from CGK Kannai Campus.
|
| July 22 (Tue) |
| One Line Self Portrait With Ms. Samantha |
Challenge yourself to complete a portrait without taking your pencil off the paper!Explore the world of one line art and complete a self portrait and/or portraits of other people without lifting your pencil off the paper. Students can paint or colour them and present their work to the class.
|
| July 23 (Wed) |
| Dangerous Animals With Mr. James |
Discover the fascinating world of dangerous animals with our special guest teacher Mr. James!Mr. James will discuss various features of different animals that make them well adapted for hunting and survival. Students will take part in various activities that will deepen their understanding of the subject matter, and create their own original predator that they can present to the class.
|
| July 24 (Thu) |
| Safari Day With Mr. Lam |
Explore the animal kingdom and share your knowledge about a wide variety of animals.After the initial discussion, work with your classmates to turn one wall into a CGK safari! Students will paint, craft, and create as many animals as they can to add to the safari wall.
|
| July 25 (Fri) |
| What If Kids Designed A City? With Ms. Nina |
Let your imagination and creativity run wild designing your own original city!Ms. Nina will join us to discuss various aspects of how cities are designed. Through looking at cities in Japan and comparing them with cities in her home country of England, students can start to think about different designs to incorporate into their city plans. After finishing the initial discussions, students will form teams and plan out their cities, discussing unique aspects of its design and debating what to include. Upon finishing their plan they will then get the opportunity to create a 3D model of it out of craft materials before presenting their plan and model to their peers.
|
| July 28 (Mon) |
| Create Your Own Wallpaper With Ms. Sayuri |
Using real wallpaper and different types of paint let your imagine run wild and bring your creative ideas to life!Ms. Sayuri will join us to lead a big art extravaganza day where students will use paint and wallpaper to create original art that can decorate the walls of the school. After an initial discussion students will work in teams and plan out their ideas. Communication will be key to make sure everyone is on the same page and using their large canvas effectively to create amazing eye catching art.
|
| July 29 (Tue) |
| Create An Original Mascot With Mr. Justin |
Dive into the world of mascots and discuss what makes them successful, eye-catching, and effective before applying what you learn to your very own original mascot!Students will discuss what makes a good mascot and look at examples from Japan and around the world. They will then work in groups or individually to create their very own mascot, develop its back story, and create additional merchandise that they will then present to the class.
|
| July 30 (Wed) |
| Original Music With Mr. Matt |
Create your own original music using a variety of instruments and technology!CGK’s music teacher, Mr. Matt, will lead a class all about creating your own original music. Using percussion instruments and a music making app, students will work in small teams to create their own music through trial and error before sharing their creation with their peers.
|
| July 31 (Thu) |
| Shaved Ice Challenge With Ms. Anjie *Very limited |
Create your own shaved ice and sample different types from around the world!Join Ms. Anjie for a fun-filled summer session where kids will explore and create their own version of shaved ice treats from around the world! From Halo-Halo to Kakigori, they’ll learn about different flavors, experiment with toppings, and design their own cool creations. |
| August 1 (Fri) |
| Tondemi Space Athletic - Field Trip by School Bus *Very limited |
Enjoy a fun filled active day with friends and work on their fine motor skills!Students will get the chance to run wild and have a super fun filled day trying out all the facilities at Tondemi Space Athletics Center. *Please prepare a lunchbox as we will be eating as a group in a local park. We will take the CGK bus from CGK Kannai Campus. PLEASE BE AWARE OF HEIGHT RESTRICTIONS(110cm and up)
|
| August 4 (Mon) |
| Reptile Day With Ms. Renae |
Explore the world of reptiles with special guest teacher Ms. Renae!Through discussion and various activities students will have the chance to dive deep into the varied and fascinating world of reptiles!
|
| August 5 (Tue) |
| Egg Drop |
Work together using the power of science to protect an egg!Investigate the various forces that exist in physics and apply them to design a device that can protect an egg dropped from the top of a ladder onto the floor.
|
| August 6 (Wed) |
| Vehicle Building |
Discover the science behind propulsion and create unique vehicles that move.Students will look at examples and discuss different ways they can build their own original vehicles out of classroom materials that move under their own power. Students will present their vehicles and race them against other teams.
|
| August 7 (Thu) |
| Bridge Battle |
Work together to design and build a bridge that can span a gap and withstand some weight.Working in groups, students will discuss, research, plan, and design ways they can build a bridge that spans a gap between two tables. Groups are free to choose a building style and material that works for them. During presentation time the bridges will be subjected to various stresses to see how they hold up and who made the strongest bridge.
|
| August 8 (Fri) |
| Water Rockets *Very limited |
Discover the science behind bottle rockets.Explore the physics behind bottle rockets and build your own to blast off at Yokohama park! *There is a possibility students may get a little wet so please prepare a change of clothing if you would like.
|
| August 12 (Tue) |
| Marble Run |
Work together to create an original marble run.Through looking at examples, discussing ideas, planning, and researching as a group, students will create their own original marble runs and share their results with the class.
|
| August 18 (Mon) |
| Cardboard Arcade |
Design and build your own original game!What can you make out of cardboard and classroom supplies? Through planning, discussion and team work let your imaginations run wild and create games we can all enjoy!
|
| August 19 (Tue) |
| Miraikan - Field Trip by School Bus *Very limited |
Explore the latest innovations in the world of science and have exciting and interesting discussions with classmates.Students will have the chance to explore the main exhibitions and the special exhibition. *Please prepare a lunchbox as we will be eating as a group at Miraikan. We will take the CGK bus from CGK Kannai Campus.
|
| August 20 (Wed) - 22 (Fri) |
| 3-Day Filmmaking Challenge: You're the Director! |
Learn about important aspects of telling a story through video and see your creation come to life over the course of three days.Students will discuss what aspects they think are important when telling a story using a video format. Using what they have learned they will work in groups to create their own short movie idea and plan out what they will do over the course of the three days. This will include the storyline itself, dialogue, props, costumes and other areas that need consideration. During presentation time each group can share their ideas and receive feedback from their peers. On day two students will get to work on filming and editing their movies and will also have the chance to create any additional items they may need for their story to come to life. Day three is the final day to shoot any remaining scenes and do any additional editing. At the end of the day we will have the opportunity for each group to share their movie with everyone. *One-day participation is possible, but we recommend attending all three days.
|
| August 25 (Mon) |
| Asobimare - Field Trip by Train *Very limited |
Enjoy a fun filled day at Asobimare.New students and old friends can bond while playing in English at the super fun indoor play center Asobimare. *We will be taking the train. Please make sure your SUICA/PASMO is charged and meet at Yokohama Station North Gate. We will come back to CGK Kannai Campus together.
|
| August 26 (Tue) |
| Floating Ship Challenge |
Learn about density, buoyancy, and how giant ships float on water through hands-on experiments!After discussing their initial thoughts and forming their own hypotheses students will test various items around the class to confirm if they sink or float when put on water. After discussing their findings students will engage in various activities to further their understanding, before working in teams to plan and construct their own ship to test if it floats or sinks!
|
| August 27 (Wed) |
| Sea Paradise - Field Trip by School Bus |
A relaxing and fun day exploring Yokohama Hakkeijima Sea Paradise Aquarium.Student's can spend the day exploring the aquarium, watching animal shows, and traversing the biggest 3D maze in Japan (weather permitting), all while discussing the experience and sharing their opinions about what they see. *Please prepare a lunchbox as we will be eating as a group at Sea Paradise. We will take the CGK bus from CGK Kannai Campus.
|
Click here to contact us from the old form or phone.
Registering via LINE allows you to receive daily photos of the lessons.
FAQ
- Do you provide bus transportation?
-
No, we do not. We ask that parents/guardians drop off and pick up their children, or the children commute to the school on their own.
- Are school lunches provided?
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Yes, you can bring your own lunch or order a lunch on regular course days. Please bring your own on field trip days.
- Can I visit the school before I apply?
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Yes. You are welcome to observe an actual afterschool classes. Please feel free to contact us.
- Is it possible to extend the hours of care?
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Pre-extended care (from 9:00 or 9:30am) is available. No extended care after the end of Seasonal School (2:00pm for regular course days and 4:00pm for field trip days) is available.
- Can I apply by the day?
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Yes. Seasonal School is available on a per day basis.
- Is there a maximum capacity?
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Yes. Regular course (approx. 45 students/day), field trip days (approx. 32 students/day).
- Can I find out about my child's lessons after they participate?
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We will share photos of how the day went through LINE. Please feel free to contact us if you have any questions about your child's experience.
- Is there a reservation deadline?
-
Yes. The deadline is 5:00pm on the business day before your desired date. (If your booking is for Monday, the deadline is 5:00pm on Friday.)
If you submit the form after the deadline, your reservation will only be confirmed once you receive a reply from us via LINE or phone.
- Is there a cancellation fee if I need to cancel my reservation?
-
Up to 7 days before the reserved date
Cancellations made at least 7 days in advance will receive a full refund.Within 6 days of the reserved date (including the day of use)
Cancellations made within 6 days of the reserved date are non-refundable.
Apply for Seasonal School
We accept applications through our LINE account. While you can still apply using the old form,
registering via LINE allows you to receive daily photos of the lessons.
Click here to contact us from the old form or phone.