Rhapsody Spa at The Westin Nashville

Rhapsody is a hotel spa first, but a spa pass lets locals and visitors who are not staying at the Westin use its facilities. The sauna is shared by men and women, and steam showers, an indoor pool and a fitness center round out the space.

Book the pass ahead through ResortPass or the spa, and add a treatment if you like. The hotel also sells cheaper pool day passes, so make sure you choose the spa pass if the sauna is what you want.