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Teshikaga-cho, Teshikaga-cho, Kawakami-gun 088-3200, Hokkaido
+81 15-482-2191
Review Highlights
An active volcano

The volcano is steaming and sulfuric smoke is rising all across it's surface painting rocks and... read more

Reviewed 1 week ago
Istvan Z
Oxford, United Kingdom
Seems less

I was here in 2013, the sulphur seems more activities. The parking was like $200 and now us $500... read more

Reviewed 4 weeks ago
Singapore, Singapore
via mobile
Read all 328 reviews
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  • Excellent29%
  • Very good47%
  • Average21%
  • Poor2%
  • Terrible1%
Travellers talk about
Teshikaga-cho, Teshikaga-cho, Kawakami-gun 088-3200, Hokkaido
+81 15-482-2191
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Reviews (328)
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1 - 10 of 39 reviews

Reviewed 1 week ago

The volcano is steaming and sulfuric smoke is rising all across it's surface painting rocks and trickles yellow. Small streams of boiling water are gushing up from between the rocks. It is possible to walk around a bit, but one can't go too far up...More

Thank Istvan Z
Reviewed 4 weeks ago via mobile

I was here in 2013, the sulphur seems more activities. The parking was like $200 and now us $500. Well, still a worth while place to go.

Thank Leslie3663
Reviewed 9 August 2017

If possible, walk from Kawayu Onsen toward Iozan, the views are worth it. The visit is short, and there isn't much to do, but see the volcanic activity. Pretty cool.

Thank Mish_H50
Reviewed 6 August 2017

We'd walked from the Eco museum. Easy and pleasant walk with changes in the micro environment that were really interesting. The hot spring and steam vents were most interesting too.

Thank Sino_newScouser
Reviewed 6 June 2017 via mobile

Located at the midpoint between Lake Kussharo and Lake Mashu, this is a national park that will not be missed. Parking is 500yen for both Lake Mashu and Iouzan so make sure you allocate sufficient time to visit both places in a day.

Thank Syrah_09
Reviewed 31 May 2017 via mobile

We stopped on our trip and we were pleased with the scenery. It looks as if you step on some planet. The ground is grey and there is a lot of steam and yellow sulfur on the ground. The smell is terrible! But it makes...More

Thank rotterdamerik
Reviewed 15 May 2017 via mobile

You can smell the pungent sulfur once you get out of the car. The large number of rhododendron plants were unfortunately not in bloom yet but it would make a pretty sight next to the bare mountain spouting vapor.

Thank E.S.Goh
Reviewed 23 April 2017 via mobile

The smell of sulphur permeates the air at this active volcano. You can walk up to where the steam comes out, and see the yellow sulphuric deposits. A souvenir shop and bathroom are nearby.

2  Thank starlitsky3311
Reviewed 22 April 2017

We went in the morning and the smell indeed very strong and we walked quite inside to see the yellow sulphur.

Thank Editplus
Reviewed 18 March 2017 via mobile

It's amazing to see this rare natural phenomenon up close! Clouds of sulphur steam are rising up from the mountain, and turn the rocks green and yellow. The smell is quite overwhelming, so we didn't spend too much time here, but we still remember this...More

Thank Lieke v
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