Welcome to Tranquility Bay Beach House Resort located in Marathon Florida, the heart of the Florida Keys. Here you will find more than unrivaled peace and seclusion on your Florida Keys resort vacation, while overlooking the sparkling waters of the Gulf of Mexico. Sink into serenity with one of our unique two or three bedroom beach houses. Now you can also discover the addition of 16 new luxury single-level "Tropical Garden Guestrooms" which offer more intimate accommodations than the resort's larger beach houses.
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