two baths , known as ' ryugu ' (assuming a hot spring in the sea ) and ' kaguya ' (assuming a hot spring in the mountain ) are provided , with use switched daily for male or female customers , but ' ryugu ' is particularly popular , because it allows a breathlessly beautiful sunset . 浴場は”海の温泉「竜宮」”ならびに”山の温泉「香具夜」があり、日替わりで男湯と女湯が入れかわるが、特に露天風呂から息をのむほど美しい夕日が望める”海の温泉「竜宮」”は人気を呼んでいる。