Karuizawa opened for the 2025-2026 winter season on 1 November 2025. This is the earliest opening in Nagano. The resort uses snow machines, so it can open early and keep stable snow.
At the start, two short courses and the day-trip Snowman Park were open. The resort then opened more courses through the season, and reached the full 14 courses by early January 2026. The season ran until 31 March 2026.
Karuizawa is next to Karuizawa Station on the shinkansen line, so it is easy to reach from Tokyo. It is a popular choice for families and beginners.
Source: Karuizawa Prince Hotel Snow Resort official website. Translated and summarised by Japow Guides.
