Kawarayu Oyu Hotspring

Lockers: small keyed valuables lockers are free (coin-return type, roughly 10x30 cm per one reviewer), while larger lockers cost 100 yen which is NOT returned — corroborated by six distinct reviewers; clothes baskets are also available. One reviewer notes the free lockers are easy to miss. Washing stations are the facility's chief bottleneck: eleven distinct reviewers mention how few there are (counts given vary between 2 and 3, one adds a standing shower), with queues forming at busy times. Showers are push-valve type that will not run continuously (two reviewers), and one reviewer (Aug 2026) reports a dangerously stiff, half-broken shower valve at the leftmost women's washing station.

One reviewer quotes the analysis as a sulfur-containing calcium-sodium chloride/sulfate spring, hypotonic-neutral-high-temperature; a second cites calcium-sodium chloride with a sulfur scent; a third calls it a rare alkaline sulfur spring (conflicting with 'neutral'). On smell, reports split: six reviewers notice a sulfur smell (mostly faint, one 'quite strong', one 'burnt-egg'), while three others describe a mineral or non-sulfur scent — one explains the relocated bathhouse now uses a blended source unlike the sulfurous pre-dam original. One reviewer saw fine white yu-no-hana flakes; two describe skin-friendly soft water.

Adult admission is 500 yen — stated by ten distinct reviewers between April and August 2026; two of them specify the ticket covers 2 hours including use of the rest room. One reviewer explicitly praises the price being held at 500 yen amid 2026 inflation.

There is one indoor bath and one small rotenburo; no sauna and no restaurant (one reviewer states this explicitly). Capacity per one reviewer: about 10 people indoors (snug) and 6 in the rotenburo. The rotenburo overlooks the Yanba dam lake, but five reviewers discuss the view — two enjoyed seeing the lake through the trees, three complain trees/foliage largely block it. One reviewer notes a sunshade over the rotenburo; another warns that in summer horseflies (abu) swarm the rotenburo and even get into the indoor bath through a ventilation gap in the door.

Body soap and shampoo (rinse-in shampoo per two reviewers, one mentions treatment/conditioner) are provided — confirmed by seven distinct reviewers. Towels are NOT included per one reviewer. Free hair dryers are confirmed by four reviewers (one counts three dryers; one complains they are weak). Tissues available per one reviewer.

Practical access notes (no English-support mentions): the car park is not at the building — it is an unpaved lot across/down the road, a 2-3 minute walk (the approach path is closed to cars), which eight distinct reviewers flag, two warning it is hard on people with bad legs. One reviewer says car navigation systems may not find the place and recommends Google Maps — but only as far as the parking lot; another notes umbrellas are thoughtfully provided for the walk.