Carillon Miami Wellness Resort at 6801 Collins Avenue in North Beach houses a 70,000-square-foot spa with a European-inspired thermal hydrotherapy circuit. Guests move between a Finnish sauna, a herbal laconium, a crystal steam room, an infrared sauna, tropical rain showers, heated loungers and a cold plunge. Day passes for non-guests start at $179 on weekdays and $199 at weekends and include the thermal circuit, cabana pool and beach loungers.