Hasunuma Onsen

A natural-spring bathhouse at 6-16-11 Nishi-Kamata, Ota, two minutes on foot from Hasunuma Station. Its 2017 redesign uses a Taisho-era theme; the operator describes the spring water as pale yellow-brown, rather than the deep black water found at some other Ota baths. Adult bathing is ¥600 and sauna access adds ¥300 including two towels. Open 15:00–24:00; closed Tuesdays, with occasional additional closures. The operator explicitly permits tattoos. Operator price, spring-water and FAQ pages checked 1 November 2026. Check the latest closure notice before travelling.

Directory reference, not live inventory. Confirm current prices, product availability and visiting rules with the operator before buying or travelling.