Summer School

What is OIS Summer School?

This is an inquiry-based summer school program using English to learn about environmental issues and local culture under the theme of "SDGs" in Okinawa!

This unique program is a collaboration between Okinawa International School, an international baccalaureate school in Okinawa, and HelloWorld, which has delivered international exchange programs to over 80,000 people in Japan and abroad!

Through a variety of SDGs-themed activities, students will not only improve their English skills, but also develop global leaders who can positively transform various social issues.

We have 21 years of experience as an international school. We provide support for those who are not accustomed to English.

Children will learn English while having fun in an unusual environment, and will develop the ability to live in the international society of the future, including the ability to think creatively, critical thinking, problem solving, and leadership.

Since the program is in Japan, it is safe and secure. School buses run on multiple routes, so there is no need to worry about picking up and dropping off your children. ( The school buses operate on routes and at stops set by OIS).

Many parents enjoy vacationing and traveling in Okinawa while their children attend the school.

Schedule and Contents

Session 2 and 3 for all grades has reached capacity and future applications will be accepted on a "waiting list".
We will contact you only if there is space available.
(Please understand that if we do not hear from you at least two weeks prior to the start of the session you wish to attend, there will be no space available and we will not be able to offer you a place).


July 22 - July 26, 2024  Application deadline: Monday, July 8, 2024

Natural Science × Social Problem

 Children learn about global environmental issues from the perspective of preserving the natural environment and consider what they can do to help.

【Main contents】
・Enjoy nature exploration logging in order to complete missions
・Fieldwork to learn about biodiversity
・Workshop to learn about issues surrounding coral reefs


July 29 - August 2, 2024  Application deadline: Monday, July 15, 2024

Tradition × New Generation

Children learn about local culture from the perspective of cultural inheritance, and learn about the wonder of traditional culture and the significance of cultural inheritance.

【Main contents】
・Cultural Exploration logaining the Mission
・Cooking experience for sustainable food culture
・Workshop to feel Okinawa's traditional culture and think about the future


August 5 - August 9, 2024  Application deadline: Monday, July 22, 2024

Social Impact × Originality

Children will look at familiar social issues and cultivate the ability to collaboratively create a better society on their own from the perspective of making an impact on society through learning from the past.

【Main contents】
・Making Art with Marine Plastics
・Making art with plants and trees
・Workshops to promote local products to the world


Program Fees

The cost is the more sessions you attend, the more you save per session.

First time to join OIS Summer School Repeaters(students who have joined the program two or more times)
1 session
(Join for one week of either)

¥83,100 ¥72,050
2 sessions
(Join for any two weeks)


Per session ¥72,700


Per session  ¥63,050

3 sessions
(Join for three weeks)


Per session  ¥67,833


Per session  ¥58,867


  • These costs are for outside students and all costs include tax.
  • The fee for lunch is not included in the fee for the program.
  • Sibling discount is available for the second and subsequent children at a 10% discount from the cost listed in the price list.

List of things to bring

Check carefully to make sure you have not forgotten anything.

\Click on the backpack!/

Parents' Comments

It was great to be able to give them an inquiry-based education. It was a good experience for them as they seemed to enjoy learning, unlike cramming type learning.
(Tokyo, 2nd grade, Elementary School)

I feel that the experience of learning English in a fun way has helped them to feel closer to English and to other countries. It was a good opportunity for me to learn English as well, as I was able to take up speaking and writing without any resistance.
(Tokyo, 1st grade, Elementary School)

Every year, there are intriguing and fun activities, and I wanted to participate again. The support system is also very well organized, so I feel comfortable participating.
(Osaka, 4th grade, Elementary School)


You can register for one session at a time, but the three sessions are linked together, so you will learn more if you attend all three.

We would like you to pay by credit card.
After confirming the details of your application, we will send you the fee information by e-mail.
Please make full payment within 2 days of receiving the information.
If we are unable to confirm payment, your application will be automatically cancelled. Please understand this in advance.

If you wish to take the bus, please notify us at least 14 days prior to the start of the program.

※ There is a limit to the number of students who can use the school bus.
※ The school bus route for the 2024 school year will be announced as soon as it is finalized.

Please check last year's bus route for reference.
【OIS_SDGs】Summer School2023 Bus Route

Reservations are required to order a boxed lunch, which will be available for 2,500 yen for small size and 3,000 yen for large size.
Catering orders must be ordered at least 14 days prior to the start of the program.
Bento orders must be ordered on a per session basis. You cannot order for each day.
If you cancel during the program, the fee will not be refunded.

※ Lunch boxes cannot accommodate allergies (all allergens including milk and eggs)

OIS Cancellation Policy
*Program fees must be paid in full within 2 days of receipt of payment.
If we are unable to confirm payment, we will treat the program as cancelled. Please understand that we will not be able to cancel the program.

Within 2 days of receipt of invoice No cancellation fee *Please note that a 100% cancellation fee will be charged for ordered lunches two weeks prior to the start of the program.*Please contact us for cancellation within the following time frame.
[ Phone ] Weekday  --8:30 - 17:00
[ email ]
6 days before program start 5,000 yen
5 days before program start - 2 days before 35% of program fees
1 day before program start 50% of program fees
On the day of the program or after the start of the program 100% of program fees


2.In case of cancellation by the school

Cancellation due to severe weather conditions (typhoon, etc.)

・If the school decides to cancel the program for one week before the program starts
▶ 5,000 yen application fee and all other fees except bank transfer fee will be refunded.
・In the event that the applicant is unable to attend the program due to a transportation disruption
▶ 5,000 yen of the application fee and a full refund excluding bank transfer fee.
・If the school is closed during the program period
▶ No refund will be made.


The following cancellation policy applies only to OIS Summer School fees and does not cover any cancellation fees for airline tickets or hotel accommodations for any reason.



Guidelines for Typhoon Response when a typhoon approaches the south-central part of Okinawa Island.

Guideline for Typhoon:Here

Details will be informed to participants by the start date.

Please feel free to contact us if you need any further information.

Phone number [8:30 - 16:45(Weekdays only)]


+81 098-835-1851


+81 098-948-7711


+81 098-948-7740

OIS will hold on international School guidance counseling.