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In 2008, Lin Kobayashi and Mamoru Taniya began creating the International School of Asia, Karuizawa (ISAK) with support from 100 founding donors. ISAK opened in 2014 in Karuizawa, Nagano, and joined the United World Colleges movement in 2017. In 2024, UWC ISAK Japan celebrated its 10th anniversary as a high school. The campus is located in Karuizawa, Nagano.
The school has about 200 students representing more than 80 countries. As Japan's first full-boarding international high school (grades 10-12), it offers a boarding school experience. The campus features the Accord Center, Creative Center, and Health and Wellness Center and is located in Karuizawa, Nagano. Boarding life fosters growth within a supportive campus community.
UWC ISAK Japan is a co-educational, full-boarding high school in Karuizawa, Nagano. It opened in 2014 as International School of Asia, Karuizawa (ISAK) and joined the UWC movement in 2017. Students study in Grades 10–12. Grade 10 is described as “Pre-IB” with a leadership and project-work focus, and Grades 11–12 follow the IB Diploma Programme (including TOK, the Extended Essay and CAS). UWC ISAK Japan empowers transformational leaders to make a positive impact now and in the future. As Japan’s first full-boarding international high school, we educate intellectually curious, compassionate, and innovative students from diverse backgrounds.
