Kumon Leysin Academy of Switzerland

KLAS is a boarding high school with separate dormitories for boys and girls, each overseen by a dedicated dorm parent. The daily schedule runs from 08:00 to 15:25 for classes, 16:00 to 17:45 for activities, 19:00 to 21:00 for study hall, with in-room time at 22:00 and lights out at 22:30. All students participate in at least two supervised afternoon activities each week, with options in sports and other pursuits. Interscholastic sports include badminton, basketball, running, skiing, soccer, snowboarding, swimming, tennis, and volleyball; non-competitive options include fitness, ice-skating, mountain biking, squash, and trekking. Leysin is a major ski resort, enabling ski and snowboard activities with instruction and school team competition; additional offerings include private music and language lessons, choir, concert band, Model United Nations, and college guidance. Leysin is reachable from Geneva by road (about 90 minutes to Aigle, then mountain road) or by train (about two hours from the airport, with a change at Aigle).

The school offers a broad range of sports through supervised afternoon activities, including badminton, basketball, running, skiing, soccer, snowboarding, swimming, tennis, and volleyball. Non-competitive sports include fitness, ice-skating, mountain biking, squash, and trekking. Leysin's location as a major ski resort supports winter activities with ski or snowboard instruction two afternoons per week. The KLAS ski and snowboard teams compete against other schools. In addition to sports, students may participate in after-school activities such as private music and language lessons, choir, concert band, Model United Nations, and college guidance.

KLAS is a three-year high school (10th–12th grades) with about 45 students per grade and 27 full-time teachers. The school year runs July through May with five terms per year. The program meets the requirements of the Japanese Ministry of Education and supports English and French development alongside Japanese. In 11th and 12th grades, students can choose the Main Bilingual Program (MBP) or the Advanced English Program (AEP), both offering English classes and elective courses in English or Japanese. In 12th grade, students may participate in the Summer Abroad Program (SAP) or the Summer in Leysin (SIL); an on-campus intensive English program is available for those not doing SAP.

The school has two sister schools in Winnipeg, Canada; students spend the first half of Term 1 at KLAS living in the dorms, and their KLAS partners visit in Canada staying in homes. September Trips involve groups of about twenty for two days of adventure, including kayaking, trekking, and canyoning. Swiss Culturals in the fall visit Zurich, Lugano, Bern, and Geneva, with a Venice trip for seniors in the spring European Culturals; reports in English are written after trips and awards are given in assembly. Optional trips occur in spring and summer breaks, and humanitarian/field trips may be organized by faculty. The school also runs a Model United Nations team, which attends The Hague International MUN for a week each January after summer preparation. A musical production has been staged since 1995, with four months of rehearsals and a full stage with orchestra, lighting, and props; about one-third of the student body participates.