Cheapest option at this property for 2 adults, 1 child
Price for:
Private suite
Bedroom 1:
1 king bed
Bedroom 2:
2 twin beds
Free crib available on request
Partially refundable Cancellation Partially refundable You'll be charged the cost of the first night if you cancel after reservation. If you don't show up, the no-show fee will be the same as the cancellation fee. Prepayment Pay the property before arrival You'll be charged a prepayment of the cost of the first night after reservation. Pay the property before arrival |
About this property
Tranquility Bay Resort offers beachfront accommodations in Marathon, FL. Three pools are located on site, including an adult-only pool and a heated pool for children. Every charming guestroom includes a flat-screen TV, small refrigerator, and coffee-making facilities. Beach homes feature an en suite kitchen, 42-inch flat-screen TV, and private laundry facilities. Relax with in-room spa services or workout in the on-site fitness room. Water sports, such as kayaking and paddle boarding, are available. Open for dinner, Butterfly Café serves fresh seafood and offers indoor and outdoor dining. T.J.’s Tiki Bar features salads, paninis, and a selection of appetizers and cocktails. Crane Point Museums & Nature Center is 3 minutes’ drive. Explore the swamps, beaches, and hiking trails of Curry Hammock State Park, 13 minutes’ drive away.
Couples in particular like the location – they rated it 9.2 for a two-person trip.
Distance in property description is calculated using © OpenStreetMap
Guest reviews
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Guests who stayed here loved
- David
United States
“Beautiful gardens, grounds excellently groomed. great location on river and right next to park entrance. Very friendly and helpful staff. Very good breakfast & dinner.” - Ginger
United States
“We love everything about Tranquility Bay! It's the only place we'll stay when we vacation in the Keys!” - Altay
United States
“This was the best place we ever stayed for our vacation. The location, rooms, amenities, beach, pools all are wonderful. The rooms were very clean. The housekeepers were very kind and hardworking. The place is very close to most of the places to...” - Susan
United States
“The room was large & roomy. Loved the resort area by the beach. Beautiful sunset.” - Amber
United States
“I loved how big and clean the rooms are. The pool and beach were just outside so no need to travel.” - Marlo
United States
“Fabulous resort feel, everything you could need was on property. Of course the staff is helpful with recommendations if you want to explore. Beds were comfortable, rooms were clean, gym was adequate, many options to accommodate all ranging from...” - Russell
United States
“Very nice resort. Location and amenities were perfect” - Caitlin
United States
“The resort was beautiful! Perfect location and such convenience for a family with a toddler under 2! Having the beach on the resort and the lagoon pool we always had something to do! My son enjoyed moving the chess pieces around, tossing bean bags...” - Robert
United States
“Awesome spot, two pools, and a beach with a tiki bar! Tons of places to relax. Full kitchen's a bonus, but we ate out—the steak and lobster place and Keys Fishery are great.” - Becky
United States
“Villa was clean, nicely furnished and decorated. Having patio spaces on both levels was perfect”
Area info
Restaurants
- Butterfly Café
- CuisineAmerican • Caribbean • Seafood
- Open forDinner
- AmbienceFamily-friendly • Traditional • Romantic
- TJs Bar & Marathon
- CuisineAmerican • Seafood
House rules
Child policies
Children of all ages are welcome.
Children 6 and above will be charged as adults at this property.
To see correct prices and occupancy info, add the number and ages of children in your group to your search.
Crib and extra bed policies
The number of cribs allowed depends on the option you choose. Check your selected option for more info.
There are no extra beds available at this property.
All cribs are subject to availability.




The fine print
Butterfly Café will be closed starting Sept. 4. We hope to host you again in early October. During this enhancement phase, our other on-site dining services, including TJ’s Tiki Bar and in-room dining, will be available.
Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.
Please inform Tranquility Bay Resort of your expected arrival time in advance. You can use the Special Requests box when booking, or contact the property directly using the contact details in your confirmation.