There is provided a hot bath facility (1) configured so that pipes (41) and (4) of two stages, upper and lower, are laid above floor concrete (3) in an enclosed bathroom (2), a training wave concrete layer (5) is formed above the pipes via a protective concrete layer (43), a rough stone flat plate (52) generating training wave energy is embedded in an appropriately divided space (51) substantially in a flush form, and on the other hand, into pipes (41, 4) of two stages, upper and lower, hot water can be supplied circulatingly from respective dedicated boilers (44, 45)