Have fun with onsite activities like kayaking, cycling, and motor boating and improve your game at the onsite tennis courts. Additional recreation onsite includes fitness classes, Pilates, and yoga. Indulge in a treatment at the spa, soothe your senses in the hot tub, or go for a swim in one of the 3 outdoor swimming pools. Marriott Sanibel Harbour Resort & Spa also has an indoor pool and a 24-hour fitness center, as well as a sauna and a garden.