COCO VILLA Asama Kogen

A whole-villa rental in the Kitakaruizawa forest for up to 10 guests, with a mirror-clad outdoor sauna heated by HUUM and a cold tub on the deck.

COCO VILLA Asama Kogen is a stone-clad house on about 14,000 square feet of forest in Kitakaruizawa, at the foot of Mount Asama, rented to one group at a time. The sauna stands a little apart from the house, its outside walls finished entirely in mirror so the trees around it seem to run straight through it. Inside, a HUUM electric heater warms three to four people, guests pour their own löyly, and a window frames the forest. Countless pin lights set into the wooden ceiling glow like a sky full of stars at night. Heat, cold tub and forest air The sauna opens onto an outdoor deck with a cold water tub and lounge chairs, so the cool highland air does the rest.

Mirror-clad outdoor sauna: electric heat, seats about 4. A freestanding outdoor sauna clad in mirror panels, set apart from the house, with a forest window and a star-light ceiling. Heater: HUUM electric heater. Listed amenities: Cold plunge, Cool-down deck, Parking.

Listing type: Vacation rental. Access: Books external. The property sleeps 10, 3 bedrooms. Cold plunge: A cold water tub on the sauna deck, open April through October. Hours: Check-in from 3 PM, check-out by 11 AM. Outdoor facilities, the sauna included, are used outside the quiet hours of 9 PM to 8 AM. Book the whole villa on COCO VILLA's own booking page, linked from the villa's page; pick your dates there to see availability. SaunaShare records this listing as editorially reviewed by SaunaShare. A listing label describes where the information came from, not the quality of the sauna. Listing details were last reviewed on November 14, 2026.

Rates and availability are set by the host. SaunaShare links to the booking page and does not handle the reservation.

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