The Standard Spa, Miami Beach

The Standard Spa is an adults-only spa hotel on Belle Isle in Miami Beach, about a mile from South Beach. Its indoor and outdoor hydrotherapy area includes a Turkish-style hammam, an aroma steam room, a sauna, an ice room, a Roman waterfall hot tub, an arctic plunge, treatment baths and an infinity pool. These are free for hotel guests, and members can also use them. Day passes for the pool and third-floor spa amenities can be reserved online on Monday to Thursday, subject to availability. Topless sunbathing is permitted in the pool area and spa rooms. The property also has a gym, yoga and fitness classes, a restaurant, a cafe and a bar. Valet parking is offered.