Niseko (ニセコ) is one of Japan’s most famous mountain destinations, celebrated for its world-class skiing, powder snow, beautiful scenery, and outdoor adventures. While best known as a winter resort, Niseko also offers hiking, cycling, hot springs, and stunning mountain landscapes during the warmer months. Below we have put together a selection of the most popular, high-ranking, and free-cancellation Viator activities in the Niseko area.