Booking Wolf
Inside the Volcano: Restricted Trek, pH 1.7 Onsen & Caldera Winery
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Food & Drink

Inside the Volcano: Restricted Trek, pH 1.7 Onsen & Caldera Winery

Kawakami
€605.17/person
From
€605.17per person

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Prices for Sat 14 Nov

You'll get a full refund if you cancel at least 48 hour(s) before the activity date (destination local time) In case of unforeseen events or extreme weather, the operator reserves the right to cancel the booking. If this happens, you have the option to reschedule or request a full refund
  • Admission to: day-use of onsen
  • English-speaking staff
  • Japanese-speaking professional driver/guide
  • Snacks
  • Drinks or alcohol at selected bars
  • Round-trip transfers
  • Insurance provided by the operator
  • Safety item and equipment

Not included: Other personal expenses

Ticket: Show e-voucher

Overview

Follow the path of volcanic energy from its source inside Mount Io down to a glass of local wine. Begin within the off-limits crater zone, passing boundary ropes with a certified guide to hike among 1,500 active fumaroles. Next, dig into the lakeside sand at Sunayu beach with your hands to feel the rising geothermal heat, before immersing yourself in Kawayu Onsen, one of the world's most acidic hot springs (pH 1.7). The day concludes with a private tasting at Kussharo Caldera Winery, where this mineral-rich volcanic soil yields a rare, cool-climate natural wine. You will leave with a firsthand understanding of how a single living volcano shapes the landscape, the water, and the flavors of this remote corner of Hokkaido.

Highlights

Exclusive Off-Limits Access: Hike past boundary ropes into Mount Io's restricted crater alongside a certified volcanic guide.
Heat, Chemistry & Terroir: Dig for geothermal heat, bathe in pH 1.7 hot springs, and taste volcanic-soil natural wines.
Award-Winning Nature Experience: Enjoy an exclusive, uncrowded Hokkaido itinerary recognized by Japan's Ministry of the Environment.

What's included

Admission to: day-use of onsen
English-speaking staff
Japanese-speaking professional driver/guide
Snacks
Drinks or alcohol at selected bars
Round-trip transfers
Insurance provided by the operator
Safety item and equipment
Towels for onsen bathing

What's not included

Other personal expenses

Cancellation policy

  • Free cancellation with 48 hours' notice.

Additional info

Please select an experience date
Departure: Meet the operator at 09:00. Enter your preferred location at checkout. The operator will make the final confirmation accordingly. The meetup place and time can be adjusted based on the guest's request. Latecomers or no-shows can't be refunded. Please arrive at the location 5 mins before the departure time [Attraction/experience] 3 hour(s), Guided tour, Mount Iō, Walk among active sulfur vents. Your guide reveals the volcano's role as the "Engine of Life." [Transportation] By car [Attraction/experience] 50 min(s), Guided tour, Sunayu Onsen, Dig a personal "Sunayu" (sand bath) at the lake's edge. Premium local bento lunch included. [Transportation] By car [Attraction/experience] 50 min(s), Self-guided, Kawayu Onsen, Bathe in Japan’s legendary acidic waters. [Transportation] By car [Attraction/experience] 45 min(s), Guided tour, Kussharo Caldera Winery, Tasting natural wines grown in volcanic soil. [Return] 15:45 - 16:00, Shuttle included Day {num} The menu might change depending on the season and availability of ingredients
Participants must be aged 10+ to participate in this activity
Prohibitions & Limitations The activity is not recommended: high blood pressure / heart disease / other serious medical conditions / infants The legal drinking age in Japan is age 20. Please bring a valid ID for proof of age What to wear Casual clothing / Hiking shoes
The voucher is valid only on the specified date (and time if applicable)

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Total
From €605.17