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Room type

Three Bedroom Waterview Cottage

Max Occupancy: 6 guests (up to 5 children, 2 infants)

Tropical Garden King Guestroom

Max Occupancy: 2 guests (up to 1 child, 1 infant)

Two Bedroom Waterview Cottage

Max Occupancy: 4 guests (up to 3 children, 1 infant)

Three Bedroom Waterfront Cottage

Max Occupancy: 6 guests (up to 5 children, 4 infants)

Tropical Garden Double Queen Guestroom

Max Occupancy: 4 guests (up to 3 children, 2 infants)


Get an overview of this hotelResort with private beach access on Marathon Key

Near Seven Mile Bridge

Located on a private beach in Marathon, Tranquility Bay Beachfront Hotel and Resort is a 5-minute walk from the turtle rehabilitation hospital, and less than 2 miles (3.2 km) from the Seven Mile Bridge. Guests can also explore Crane Point Museums & Nature Center, a 5-minute drive away.

3 outdoor pools

Guests can work up a sweat in the fitness center, then have a refreshing dip in one of the resort's 3 outdoor pools. Those with a hankering for fresh local seafood can find it at Butterfly Cafe, and finish the night with a stroll on the beach and a cocktail at TJ's Tiki Bar.

Flat-screen TV and fridge

The resort offers light and airy guestrooms and beach houses with conch-style architecture and handmade furniture. Guests can relax in front of the flat-screen TV, and stash refreshments in the mini-fridge. All rooms have coffeemakers, and some beach houses have gourmet kitchens.

Hotel Amenities

Hotel Amenities

Simply walk outside to feel the sun on your face at the sand beach and at Tranquility Bay Beachfront Hotel and Resort you can cool off in one of the 3 outdoor swimming pools.

The condominium resort offers a restaurant. Guests can unwind with a drink at one of the condominium resort's bars, which include a beach bar and a bar/lounge. A computer station is located on site and high-speed wireless Internet access is complimentary. Onsite self parking is complimentary.

Tranquility Bay Beachfront Hotel and Resort is a smoke-free property.

  • Bar/lounge 
  • Beach bar 
  • Beach sun loungers 
  • Computer station 
  • Fitness facilities 
  • Free self parking 
  • Free WiFi 
  • Front desk (limited hours) 
  • Number of outdoor pools - 3 
  • On private beach 
  • Pool sun loungers 
  • Restaurant 
  • Smoke-free property 
  • Spa services on site 
  • Total number of rooms - 103 
  • Year Built 2005 

Family Friendly Amenities

  • Free Wi-Fi  
  • Outdoor pools  
  • On private beach  


Available in all rooms: Free WiFi

Available in some public areas: Free WiFi


Free self parking

Room Amenities

  • Air conditioning 
  • Cable TV service 
  • Free toiletries 
  • Daily housekeeping 
  • Flat-panel TV 
  • Free WiFi 
  • Hair dryer 
  • In-room massage available 
  • Iron/ironing board 
  • Shower only 

Where to Eat

Tranquility Bay Beachfront Hotel & Resort offers award-winning tropical cuisine at the Butterfly Café and TJs Tiki Bar.

Nearby Things to Do

3 outdoor swimming pools are on site along with a private beach and a fitness center.

The recreational activities listed below are available either on site or nearby; fees may apply.

  • Parasailing nearby 
  • Golfing nearby 
  • Snorkeling nearby 
  • Scuba diving nearby 
  • Bicycle rentals nearby 
  • Hiking/biking trails nearby 
  • Personal motorized watercraft on site 
  • Kayaking on site 
  • Sailing on site 
  • Volleyball on site 

Spa Services

Spa services are offered in-room. Services include deep-tissue massages, Thai massages, facials, and body wraps. A variety of treatment therapies are provided, including aromatherapy, Ayurvedic, and hydrotherapy.

  • Deep tissue massage 
  • Prenatal massage 
  • Thai massage 
  • Reflexology 
  • Body wraps 
  • Body scrubs 
  • Aromatherapy treatments 
  • Hydrotherapy treatments 
  • Ayurvedic treatments 
  • Body treatments 
  • Facial treatments 

Hotel Policies


Check-in time ends at 11 PM

Check-in time starts at 4 PM

Minimum check-in age is 25

Special check-in instructions:

If you are planning to arrive after 11 PM please contact the property at least 24 hours in advance using the information on the booking confirmation.


Check-out time is 11 AM

Payment types

Children and extra beds

  • Children are welcome.

You need to know

Extra-person charges may apply and vary depending on hotel policy.

Government-issued photo identification and a credit card are required at check-in for incidental charges.

Special requests are subject to availability upon check-in and may incur additional charges. Special requests cannot be guaranteed.

  • The name on the credit card used at check-in to pay for incidentals must be the primary name on the guestroom reservation.

No rollaway/extra beds available

No cribs (infant beds) available

Only service dogs are allowed

No elevators

Please note: Pets not allowed. Service animals still permitted.


Optional extras

The following fees and deposits are charged by the property at time of service, check-in, or check-out.
  • A late check-out fee will be charged
The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

Hotel Name

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