Welcome to Tranquility Bay: A Florida Keys Beachfront Resort in Marathon
A stay in the Florida Keys should feel easy.
At Tranquility Bay Beachfront Resort, days are shaped by Gulf views, private beach access, spacious accommodations, and the slower pace that makes the islands so memorable.
Set in Marathon, in the heart of the Florida Keys, the resort gives guests a relaxed beachfront base for couples’ getaways, family vacations, group trips, and longer stays.
For travelers comparing Florida Keys resorts, Tranquility Bay offers a balance that is hard to beat. You can explore the islands during the day, then return to a calm waterfront setting with room to settle in.
Why Stay in Marathon?
Marathon is one of the most convenient places to stay in the Florida Keys.
Located near the middle of the island chain, it makes it easy to explore in either direction. Guests can plan a day trip south toward Key West, spend time around Marathon’s own waterfront restaurants and attractions, or head north toward Islamorada and Key Largo.
At the end of the day, you return to a quieter Gulf-front resort rather than a busier town center.
That balance is part of Marathon’s appeal. You are close to the wider Florida Keys experience, but your stay still feels spacious, relaxed, and connected to the water.

A Beachfront Stay in the Heart of the Florida Keys
Tranquility Bay is built around the kind of setting many guests picture when they imagine a Florida Keys vacation.
Palm-lined paths, tropical landscaping, open Gulf views, and a private white-sand beach shape the experience from the moment you arrive.
The resort sits directly along the Gulf of Mexico, so the beach is always close. Mornings can start with coffee near the water, afternoons can move between the beach and pool, and evenings can end with sunset views just steps away.
Unlike some Florida Keys resorts, where beach access can be limited, Tranquility Bay keeps the shoreline at the center of the stay. Families have space to gather, couples can find quieter corners, and longer stays feel easy and relaxed.
Accommodations for Every Stay Style
Where you stay matters, especially in the Florida Keys.
A weekend getaway may call for something simple and comfortable. A family vacation may need more space. A longer stay may feel easier with a kitchen, laundry, and room to spread out.
Tranquility Bay offers a range of Florida Keys accommodations designed for different kinds of trips.
Garden Guest Rooms

Garden Guest Rooms are a comfortable choice for guests who want a peaceful place to unwind after a day in the Keys.
Surrounded by tropical landscaping, they offer a relaxed setting while keeping you close to the resort’s beach, pools, dining, and activities.
They work especially well for couples, shorter stays, and guests who plan to spend their time enjoying the resort and exploring Marathon.
Learn more about these Florida Keys guest rooms and find the right fit for your stay.
Two and Three Bedroom Villas

For families, groups, and longer stays, the resort’s Florida Keys beach houses offer more room to live.
Two and three bedroom layouts give guests separate bedrooms, living areas, kitchens, laundry facilities, and private porches.
That extra space makes a real difference. Parents can keep mornings easier. Groups can gather without feeling crowded. Longer-stay guests can settle into a more comfortable rhythm.
You can wake up slowly, make breakfast, spend the day by the beach, and come back to a space where everyone has room to relax.
It feels more flexible than a traditional hotel room, while still giving you the amenities of a beachfront resort.
Resort Amenities, Dining, and Daily Experiences
Tranquility Bay is built for easy days.
Guests can relax on the private beach, swim in one of the resort pools, walk through the tropical grounds, or spend time between the shoreline and their accommodation.
The resort also offers amenities like a fitness center, bikes, volleyball courts, and a putting green, giving guests simple ways to stay active without overplanning the day.
The pace is casual and flexible. You can fill the day with activity, keep it completely open, or move between both.

Dining at Tranquility Bay
Dining is part of the resort experience, too.
The resort’s waterfront dining in Marathon includes:
• Butterfly Café for a more polished dinner setting with a relaxed coastal feel
• TJ’s Tiki Bar for casual, open-air drinks and easy dining near the water
Butterfly Café is a good fit for date nights, family dinners, and evenings when you want to stay close to the resort.
TJ’s Tiki Bar is an easy place to pause between beach time and sunset, enjoy a drink, and keep the evening relaxed.
On-property dining helps take pressure off the day and makes it easy to enjoy the resort without planning every meal around leaving the property.
Experiences on the Water
The Florida Keys are best experienced close to the water.
At Tranquility Bay, guests can explore watersports from the private beach without needing to build the whole day around an off-site excursion.
Available experiences include:
• Kayaking for relaxed shoreline paddling
• Paddle boarding for calm Gulf exploration
• Jet skiing for a more active experience
For some guests, watersports become a highlight of the trip. For others, they are simply a fun option waiting nearby.
Either way, the experience fits the rhythm of the resort. You can be active when you want to be, then return to the beach, pool, or your private porch when you are ready to slow down again.
A Florida Keys Resort Made for Slower Days
Tranquility Bay stands out among Florida Keys resorts because it brings the essentials of a Keys vacation together in one place.
Beach access. Gulf views. Spacious stays. Dining. Pools. Easy ways to get on the water.
It is a resort for travelers who want the beauty of the Florida Keys without feeling rushed.
You can explore Marathon, plan day trips through the island chain, or simply stay close to the water and let the day unfold.
That is the beauty of Tranquility Bay. It gives you the space to experience the Florida Keys at your own pace, with a beachfront setting that feels calm, comfortable, and easy to return to.
FAQs
Is Tranquility Bay a beachfront resort?
Yes. Tranquility Bay Beachfront Resort is set along the Gulf of Mexico in Marathon, Florida, with private white-sand beach access for guests.
Where is Tranquility Bay located?
Tranquility Bay is located in Marathon, in the heart of the Florida Keys. Its central location makes it a convenient base for exploring Key West, Islamorada, Key Largo, and the surrounding islands.
What types of accommodations are available?
Guests can choose from Garden Guest Rooms and spacious two and three bedroom beach houses. The beach houses include features such as kitchens, living areas, laundry facilities, and private porches.
Is Tranquility Bay good for families?
Yes. The resort is well suited to families thanks to its spacious beach houses, private beach, pools, on-site dining, and easy access to watersports.