Use the

Planning a Trip to Japan?

Share your travel photos with us by hashtagging your images with #visitjapanjp

Narusawa Ice Cave 鳴沢氷穴

Ice Cave Ice Cave
Ice Cave Ice Cave

Venture into two volcanic caves right by Mt. Fuji that are always cool

Narusawa Ice Cave is a frozen subterranean realm located in the heart of the Aokigahara Forest at the base of Mt. Fuji that formed when nearby Mt. Nagao erupted.

While you're in the area, check out Fugaku Wind Cave nearby as well. The best time to see the ice in these caves is naturally in winter, but you'll also find this a cool retreat in the summer. You can buy a ticket that allows entry into both caves.

Quick Facts

Some of the ice pillars measure over 3 meters long

At its lowest point, the cave is 21 meters underground

A figure-eight walking course takes you through the tunnel

How to Get There

You can reach the cave by train, bus or car.

If arriving via train, disembark at Kawaguchiko Station on the Fuji Kyuko Line. From there, the cave is a 30-minute bus ride away.

If arriving by car from Tokyo, exit at the Kawaguchiko Interchange.

Formed by an ancient eruption

The ice cave was created after Mt. Nagao, which formed Mt. Fuji's northwestern flank, erupted violently in 864. Lava hollowed out a vast underground cave. Temperatures drop steadily as you make your way down the stairs and through low, dark tunnels.

The ice pillars that form here grow bigger in the winter, and sometimes the stalactites and stalagmites actually connect. The cave's temperature hovers around zero degrees Celsius year-round, and it was once used to store seeds and silkworm cocoons.

Be sure to bring something warm to wear, even at the height of summer.

Another cave worth exploring

Pair your visit to the Ice Cave with one to the Fugaku Wind Cave. You can walk there from the Ice Cave in about 20 minutes.

Extending 200 meters below ground, the Fugaku Wind Cave features impressive lava formations, while unusual light moss colonies accentuate its natural beauty. One notable aspect of this cave is that there are no echoes: the wall of basaltic rock absorbs sound.

* The information on this page may be subject to change due to COVID-19.

Recommended for You

Aokigahara Jukai Forest
Aokigahara Forest
fuji five lakes
Explore the Fuji Five Lakes

Please Choose Your Language

Browse the JNTO site in one of multiple languages