Available languages
3 hours
Mobile ticket
Aokigahara forest, as known as Jukai (Sea of trees) is located on the north side of Mt. Fuji and attracts many people. Enjoy this 3-hour adventure to a cave where you can only go with a special permission with an English speaking guide. No handrails and no light, unspoiled secret cave. An adventure tour that can not be compared with others, heading with one headlight. Small-Group Tour is limited to a maximum of 12 travelers.
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
Follow the guide's instruction. For safety measures, we may suspend the tour if there is a customer who does not follow the directions or is disturbing other customers.
Depending on the program, this may not be safe for customers who are pregnant or have been drinking.
There is a reception on the appointed date so please arrive on time.
Children must be accompanied by an adult
Clothes suitable for outdoor activities. Long sleeves / long pants/winter jacket.
For a full refund, cancel at least 24 hours before the scheduled departure time.
There was a large eruption at the base of Fuji mountain 1200 years ago and a large amount of lava flew creating many caves out of the solid lava flow. After that, Mt Fuji's melted snow came into the frozen caves and formed beautiful ice art. This is an adventure tour where you can explore a rare cave which is so unique that you cannot find anywhere else. Have to walk with only a single headlight and you will enter the world of 0°C in the caves that is made by the great Mt Fuji. With full of thrill, using your five senses. Your guide with full knowledge of the area will assist you to enjoy the area fully. With this tour, walk through a mysterious and beautiful forest - the Sea of Trees/Aokibara Forest with a highly experienced English guide. During the tour, experience full of adventure and excitement that will stimulate all senses, have chance to view the natural ice art that created Mt. Fuji through its history. The tour is operated in a small group, normally individual guests require to obtain a special entry permit; however we are the only group tour that includes this in the tour. The tour also include entry to the "Real Cave" where is secluded and hasn't became a tourist attraction, and also experience the world of 0 degree Celsius natural caves created by Mt. Fuji. Schedule 1. Meet at meeting point. 2. Tour preparation (helmet, headlight, overall, gloves, clothes to change ,toilet and calm down your feelings) 3. Move to departure site of the tour 4. Walking in Aokigahara Forest (40 minutes), exploring the lava cave (60 minutes) and walking in Aokigahara Forest (40 minutes) 5. Move to the meeting point 6. Review and breaking up 7. Go home safely Depending on tour progress, there is time fluctuation.
Private transportation
All taxes, fees and handling charges
English speaking guide
Pick-up service and drop-off service (Kawaguchiko station, Hotel around Lake Kawaguchiko)
Air-conditioned vehicle
Driver/guide (Local professional guide)
Exploration Equipment (a helmet / an overall / gloves / a headlight)
Accommodation Fee
Transportation Fee so far
Food and drinks
Select a pickup point
Option 1: Tour at morning.
Pickup included
251 reviews
Total reviews and rating from Viator & Tripadvisor
DavidZ544,Mar 31, 2026
- Review from Tripadvisor
This was a great activity to do while in Mt Fuji as a family. Tada was an excellent and experienced guide, and was great with our kids who are 12 and 10. It was not too tough to climb through the ice cave but it would be a challenge if you’re not that mobile. Highly recommend this if you’re in the area
pawanb936,Mar 29, 2026
- Review from Tripadvisor
Excellent experience, unique and unforgettable. Will definitely go again. The guide was so knowledgeable, lots of specific insight into the surrounds and history and made our tour one of a kind.






Andrew W,Mar 27, 2026
- Review from Viator
Well taken care of. Knowledgeable guide with interesting additional information during the experience. Had a great time. Would book with operator again if I was back in the area. Thanks.
Natalie W,Mar 24, 2026
- Review from Viator
Fabulous experience! The photos don’t do the beauty justice. The cave is awesome and Tada was a great guide. Very knowledgeable on the area.
Steph B,Mar 24, 2026
- Review from Viator
Need to be agile and Confident walking on slippery surfaces. A great day out and an unusual experience
Erik l,Feb 24, 2026
- Review from Viator
amazing experience. he is very knowledgeable of the forest from the history to the biological life there. would recommend to friends
klt0408,Feb 13, 2026
- Review from Viator
Toshi-San was an awesome guide and very knowledgeable about the forest, its history, and the nature in the surrounding area. Hiking into the forest and then deep into the ice cave was a one-of-kind experience and well-worth beyond the ticket price. If you are looking for a perfect day trip from Tokyo that is different and gets you outside, look no further! Thanks so much Toshi and THE HIGHEST PEAK team!
Zach G,Jan 25, 2026
- Review from Tripadvisor
The tour guide was great, friendly and made sure we were safe and comfortable navigating the cave. I would recommend the trip to anyone wanting to do something a little different than the regular gondola rides etc. and the forest was beautiful. 5/5 ⭐
Beatriz B,Jan 23, 2026
- Review from Viator
The other people that registered didn't show up so I ended up having a private tour. The guide was really nice, polite and funny. It was a very cool experience. The cave is in the forest which is also a beautiful scenario and the experience of going in was incredible!

Kyle V,Jan 6, 2026
- Review from Tripadvisor
Takashi was an excellent and friendly guide. From the moment we met him at the train station he was very hospitable and accommodating. My girlfriend and I were the only ones on the tour and we were really taken care of. Takashi provides almost everything you'll need for the hike and cave. He carefully explains all of the different flora and fauna of the forest while you hike. He really made the two of us feel at peace. And his oranges Are really good too!





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