"The resort is stunning, impeccably maintained, and perfectly designed for families of all ages."
Dana R from United States
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"This resort was such a great choice for our party of six."
Jennifer J from United States
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"Amazing beach, especially for the Keys, Tiki bar with daily live music."
jeremy g from United States
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"Beautiful grounds an well kept"
Nancy from United States
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Beachfront resort with a private 2.5-acre white-sand beach in Marathon, Florida Keys
Amenities & Pools
The resort offers three swimming pools, including an adult-only pool and a heated children's pool, all with sun loungers and beach chairs. Guests have complimentary access to kayaks and watercraft rentals, plus a fitness center and yoga classes. Daily organized activities and live entertainment take place at the beach and pool areas, and the property includes an outdoor fireplace and furniture for evening relaxation.
Accommodations
Every guestroom comes with a flat-screen TV, small refrigerator, and coffee-making facilities. The beach houses feature a full kitchen, 42-inch flat-screen TV, and a private washer and dryer. ADA-compliant accommodations are available for guests with disabilities, and select units offer private porches and fully equipped kitchens.
Dining
Butterfly Café serves dinner with fresh seafood and offers both indoor and outdoor seating. TJ's Tiki Bar provides salads, paninis, appetizers, and cocktails in a beachside setting. On-site restaurants also include a bar that serves wine and champagne, and kids' meals are available.
Family & Activities
The resort is family-friendly with a heated children's pool and a fence around all pools for safety. Complimentary water sports such as kayaking and paddle boarding are available, plus a mini golf course and snorkelling equipment. Proximity to the Dolphin Research Center and Turtle Hospital makes it easy to explore local attractions without leaving the Keys.
Location
Tranquility Bay Resort is located on a private 2.5-acre white-sand beach in Marathon, just 75 km from Key West International Airport. Crane Point Museums & Nature Center is a 3-minute drive away, and Curry Hammock State Park is 13 minutes from the property. The resort sits close to the Florida Keys Aquarium Encounters and the start of the Seven Mile Bridge.
Highlights
Beach: Private 2.5-acre white-sand beach
Pools: Three pools including adult-only and heated children's pool
Water sports: Complimentary kayaks and watercraft rentals
Dining: Butterfly Café & TJ's Tiki Bar
Location: 75 km from Key West airport, near Dolphin Research Center
Must-do experiences
Visit the Turtle Hospital for an unforgettable marine conservation tour.
Savor a slice of key lime pie at the renowned Key Lime Pie Factory.
Take a sunset cruise with Florida Keys Kayak Tours for stunning views.
Explore the hidden gems of Bahia Honda State Park's unspoiled beaches.
Discover local art at the Marathon Community Theater's exhibitions.
Select your room type
Tranquility Bay Resort offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Tropical Garden King Accessible King Guestroom
2 persons
37 sq. feet
1 King-size bed
Air conditioning
Shower
room details
Tropical Garden King Guestroom
2 persons
37 sq. feet
1 King-size bed
Air conditioning
Shower
room details
Tropical Garden Double Queen Guestroom
2 persons
37 sq. feet
2 King Size Beds
Air conditioning
Balcony
room details
Show all rooms
Room Availability and Pricing Calendar
See today's rates and availability for your selected dates!
September 2026 - September 2027
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Check-in/ Check-out
Facilities
Tranquility Bay Resort offers amenities for a comfortable stay and memorable Florida Keys experiences
Facilities: Great
8.6/10Review score
General
No smoking on site
Wi-Fi
Parking
No pets allowed
Rooms/ Facilities for disabled
ATM/Cash machine
Fireplace
Sports & Fitness
Fitness centre
Snorkelling
Golf course
Yoga class
Fishing
Guest Parking
Public parking is possible on site for free.
Services
Room service
Housekeeping
Shops/Commercial services
Welcome drink
Happy hour
Dining
Restaurant
Bar/ Lounge area
Business
Meeting/ Banquet facilities
Children
Cots
Children's menu
Spa & Leisure
Heated swimming pool
Outdoor swimming pool
Beach access
Sun loungers
Live entertainment
Beauty treatment
Room features
Air conditioning
Heating
Garden furniture
Ironing facilities
Bathroom
Bathtub
Show more
Tranquility Bay Resort Location
2600 Overseas Highway, Marathon, 33050,
Explore Marathon
Explore the Surroundings
Top Attractions
Activities
Dining
Entertainment
The Turtle Hospital
2 minutes' walk
A unique facility rehabilitating turtles, offering guided tours to learn about sea turtle conservation efforts.
Shady Palm Art Gallery & Photography
1 minute' walk
A vibrant art gallery featuring local artists; perfect for browsing stunning photography and unique art pieces.
Sombrero Beach
10-minute drive
A picturesque beach known for its soft sand and clear water, ideal for sunbathing and swimming.
Crane Point Museum and Nature Center
4-minute drive
An informative natural history museum and nature trails, enriching visitors with the area's wildlife and ecosystems.
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