Hiki stargazing sauna is a reservation-only sauna facility located on the 5th floor of the 'Nekoyamachi Building' in the center of Hiroshima City. It features a sauna overlooking a small garden, an outdoor air bath zone where you can gaze at the stars, and a relaxation lounge equipped with designer furniture, offering a hybrid sauna experience of 'urban x nature.' This space, where artistic architectural design and sauna culture merge, allows you to drop by lightly and design your time to achieve a state of perfect relaxation.