ABOUT
About this spot
Formed as a satellite volcano of Mt. Fuji, Narusawa Ice Cave is a looped lava cave with a total length of 153 m. Designated a National Natural Monument, it stays at an average of about 3 degrees Celsius all year round, making it a "natural refrigerator" where you can step into a cool, otherworldly realm even in midsummer. The cave's greatest highlight is the huge "ice pillars," formed when water seeping from the ceiling freezes. Utterly enchanting, these columns of ice captivate countless visitors as works of art created by nature. You can also see the "lava tunnel," a trace left by flowing lava, and observe the dynamic history of volcanic activity up close. Some sections of the passage have very low ceilings, so you have to stoop as you go, adding a thrilling sense of adventure. It is perfect for a family trip, an escape from the summer heat with friends, or a solo journey to soak in the mysteries of nature. A popular, mystery-filled spot, it is a must-visit when exploring the Fuji Five Lakes area.
Last updated March 28, 2026