Spas with walk-ins welcome

Dublin, Leinster

A walk-in sauna bathhouse for adults in Grangegorman, Dublin 7, open daily with no booking required.

Tampere, Pirkanmaa

A budget-friendly public sauna and bathhouse in Tampere, open to walk-ins but reservations are also an option.

Denver, Colorado

Adults-only bathhouse on West Colfax Ave in Denver with a steam room, sauna, hot tub and relaxation lounge, open daily except Tuesday.