Safety Harbor Resort & Spa is a historic waterfront resort on Tampa Bay built on the Espiritu Santo Springs and operating a natural mineral springs spa since 1925. Its 50,000-square-foot spa and fitness complex includes steam rooms, saunas, whirlpools, a ladies' plunge pool, a heated indoor pool and an outdoor lap pool. A $50 Resort Day Pass gives non-guests access to the pools, sauna, steam room, fitness centre and classes, except on holidays.