Better in Pairs Instagram Contest
Better in Pairs Instagram Contest

Win a 3-Night Stay for Two at Our Florida Keys Resort. Read More

Stay 5 Nights and Save More
Stay 5 Nights and Save More!

Stay longer and save at Tranquility Bay! Call 877-741-7839. Book Now

Luxury Autumn Escapes From $219/Nt
Luxury Autumn Escapes From $219/Nt

Enjoy AAA and AARP Savings this autumn. Learn More

Up to $250 for Dining
SALE: Up to $250 for Dining

Enjoy a $50/night dining credit, select dates and room types. Learn More

View Our Online Planning Guide

See which month is best for your visit! Call 855-417-5782 Browse Now

Tranquility Bay Resort: A Luxury Florida Keys Resort

Rated #1 in Marathon on TripAdvisor

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. Our spacious Marathon, Florida resort beach houses have 2 or 3 bedrooms, 2+ baths, gourmet kitchens, expansive porches overlooking the water, flat screen TVs, and handmade furniture, offering an idyllic Florida Keys resort experience nestled in a tropical oasis of calm and ease. 

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. Enjoy all of the amenities of Tranquility Bay Resort with more affordable luxury in mind, and tropical garden views.

Next, try award winning dining at Butterfly Cafe, a 2.5 acre white sand beach, world class fishing, diving, snorkeling and water sports, three tropical swimming pools, and our beachfront TJ's Tiki Bar, all framed by 12 acres of picturesque gardens. Located just 90 miles south of Miami and 45 miles north of historic Key West, Tranquility Bay Beach House Resort is easily reached by car or plane. Boasting delicious dining, Florida Keys' attractions, plus a nearby Championship 18-hole golf course, tennis courts, state parks with incredible beaches, protected waters for diving and some of the best sport fishing in the world, you can define your own paradise at our unique vacation destination in the Florida Keys.

Wi-Fi is provided at this property as a courtesy to our guests for use with low volume internet traffic such as email or web surfing. It is not structured to support high-speed Wi-Fi internet needs used for gaming and/or servers. Speeds are limited per guest to help provide a stable reliable service for all users. The resort staff is not responsible for the support of any device connections to the Wi-Fi or any other issues related to the Wi-Fi. Please contact Safety Net Access at 1-888-636-5212 for any Wi-Fi support related questions.