Roten Onsenku is located in Doumen District, Zhuhai, Guangdong Province, China, a coastal region in the south of the country. Thermal water, with a neutral pH of 7.3, flows at 40°C, with an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Doumen District in Zhuhai sits at the western edge of the Pearl River Delta — one of the world's most economically dynamic urban regions. Just 30 km from Macau and connected to Hong Kong by the Hong Kong–Zhuhai–Macau Bridge (55 km, world's longest sea-crossing bridge), Zhuhai is a Special Economic Zone with surprising leisure and natural assets including the Doumen Hills. This open-air (roten = 露天, outdoor) hot spring facility offers geothermal relaxation amid subtropical greenery.