Lake Shikotsu is the northernmost ice-free lake which is 363 meters deep. This festival features a moss-covered cave, which has evergreen draped on the inside and is covered in ice (Gianola, 2008). This festival is held from late January to mid February. This festival features ice sculptures, small and large. At night the sculptures are illuminated by different colored lights. There is a fireworks show during the festival as well. Admission is free. Amasake (hot sake) is available for purchase to enjoy (2008 Ministry of Land).