Hitou (hidden/secret onsen) refers to remote hot springs prized for their seclusion and untouched atmosphere, while meitou (renowned onsen) highlights water quality, history, and reputation. This guide first clarifies the distinction, then hand-picks 8 inns from the Japan Association of Secluded Hot Spring Inns, comparing them across water quality, atmosphere, access difficulty, and travel style (verified Feb-Mar 2026).
