English-speaking guide
Round-trip transfers
Tax
Guide fee
Experience fee
Training costs
Insurance fee
Equipment rental
Facility using fee
Other personal expenses
Participants must be aged 6+ to participate in this activity
Children aged 6-18 must be accompanied by a paying adult
Participants under 20 must have guardian consent
Participants must be aged under 70 to take part in this activity
In case of cancellation due to weather or other circumstances, the host will contact you by the day of the tour
You may not be able to participate in this plan if you have any of the following symptoms or chronic illnesses
Health Condition: Epilepsy / Diseases of respiratory organs and lungs (pneumonia, tuberculosis, asthma, emphysema, etc.)/ Heart and circulatory diseases (arrhythmia, angina, hypertension, etc.)/ Diseases of the shoulder and neck, spine, etc/ May make the disease worse after participating in the activity/ Drug users/ Heavy drinkers on the day of the event/ On the day of the event, the organizer shall judge that its safety cannot be ensured/ Women who are pregnant or are likely to be pregnant
Rainwear (※Rental possible at location)
Clothing: Long pants, long sleeves, athletic shoes, and clothes that are easy to move in
Please avoid shorts, skirts, restrictive clothing, or sandals
Trekking shoes are also acceptable
The cave temperature stays around 0°C (32°F) year-round, so bringing an extra warm layer is recommended
All necessary safety gear (helmet, headlamp, coveralls, gloves) will be provided by the host, so you can join hands-free and worry-free
Explore the mysterious, nature-filled Sea of Trees (Jukai) — a forest full of wonder and hidden discoveries! Step into a world of excitement as you venture together into a natural lava cave formed by volcanic eruptions, with no handrails or lights. It’s time for everyone to become explorers!