Extreme Onsen

Onsen is a sport! In the oasis surrounded by rugged mountains, make full use of your body and enjoy it to the fullest potential!

Stand up to Mother Nature!Extreme and awesome! That's what Extreme Onsen is all about!

So much excitement and dynamism await you.

Access to Nakanosawa and Numajiri Onsen.
[By Train]
Via Koriyama Station on the Tohoku Shinkansen Line, approximately 30 minutes by Bandai Toto Bus from Inawashiro Station on the JR Banetsusaisen Line (get off at Nakanosawa Onsen bus stop).

[By Car]
About 18 km from the Inawashiro Bandai Kogen IC on the Banetsu Expressway.

Reception café & activity
nowhere
Café and activity base located in
Bandai Asahi National Park,
surrounded by three of
Japan’s Hundred Famous Mountains.
Start Numajiri trailhead
parking lot
It's the beginning of an extreme onsen experience.
We will pick you up from "nowhere".
Towards the source Mt. Adatara
Numajiri trail
Heading to the source
by walking on the route
to climb Mt. Adatara.