For approximately 10 weeks in winter, ice stalactites and stalagmites up to three meters long and high form in an ice cave on the Noboribetsu River. These rare formations are the product of a unique combination of geology and climate, creating a natural wonderland. The hike in on snowshoes and is 8 kilometers in all, and includes some gentle climbing through fir and native forest. This tour is a great way to experience snowshoeing to a truly memorable destination.