十勝川温泉 ホテル大平原とかちがわおんせん ホテルだいへいげん
Day-use bathing, Sawayaka Land (さわやかランド), runs 15:00 to 21:00 on weekdays and 13:00 to 21:00 on weekends and holidays.
Adult day-use entry is 1,000 yen; children from age 3 through elementary school are 500 yen, and under 3 is free. A towel and bath-towel rental set is an extra 200 yen.
Uses natural hot spring water
Plant-derived moor (moru) hot spring, marketed as a 'beauty bath' (美人の湯).
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Sauna renovated in 2023, with self-loyly (セルフロウリュ) available.
Cold water plunge bath, typically used after sauna
Private bath available for day-use visitors or hotel guests to reserve
Also stated as 貸切風呂なし on tokachigawa.net (the Tokachigawa Onsen area portal).
Shared bathing area for all genders
Gender-separated bathing (men's/women's); no mixed bathing mentioned anywhere.
Welcomes children and families
Children's jinbei (甚平) provided as room amenity; free baby-chair rental also offered at the day-use bath reception.
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Relaxation space for after bathing
黄昏ラウンジ (Tasogare Lounge) doubles as a rest/waiting area for bathers; there is also a guest-only コミュニティルーム lounge.
On-site or nearby parking available
Free parking for approx. 400 cars, 20 buses, 5 motorcycles, per the Obihiro Tourism Convention Association listing.
Hotel Daiheigen has been part of Tokachigawa Onsen since 1956, a year after its moru (モール) spring was first drilled. The water is plant-derived, tea to amber in color, with a faint herbal scent and a smooth feel on the skin, known locally as bijin-no-yu (美人の湯), a 'beauty bath'. Bathing is split between a large indoor hall with an open-air bath ringed by birch trees, and a second bathhouse with five different water-jet corners and a sauna renovated in 2023 that lets guests add their own steam. The hotel also runs hot-air balloon rides when the weather allows, alongside its main business as a ryokan.
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Last updated July 17, 2026