- Family Spring Break Escapes
Discover our family resort in the Florida Keys for spring break! Learn More
Tranquility Bay Resort Video
Explore Our Florida Keys Beachfront Resort
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 or spacious guestrooms.