Lake Sai Ice-tree festival is started in 2000 at Lake Sai wild bird forest park. There are many ice-trees displayed in this festival, such as dog, waterfalls, house and iced tree.

When you visit this festival at daytime you can enjoy ice-tree with beautiful Mt. Fuji as the background. At night, they will be beautifully lighten up.

This festival also offers great food. Himemasu is the most delicious fish you can eat in this festival. Himemasu is very rare fish which you can buy only certain area in the winter. It is very soft fish, so you can eat everything including head and bone.