8.5 Fabulous Based on 552 reviews
Editor's Pick

"Townhouses sit along a private beach, accompanied by a Tiki bar and saltwater pools. A Butterfly Café serves refined meals beside lush, landscaped gardens. Made for weekend couples, and not for those needing flexible smoking policies."

From US$ 155 US$ 139 per night
Save 10%
Check-in
24 Sept 2026
Check-out
25 Sept 2026
Guests
2 guests

Adults:

2

Children:

0
  • Free cancellation
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Why guests choose Tranquility Bay Resort

  • Private Beach
    3 acres
  • Kayak Rentals
    Complimentary daily
  • Three Pools
    Adult-only & family
  • Butterfly Café
    Seafood dinner
  • TJ's Tiki Bar
    Beachside cocktails
  • Beach Houses
    Kitchen & laundry

Overview

Offering snorkeling, volleyball, and mini golf, the non-smoking Tranquility Bay Resort Marathon is located in the very heart of Marathon, only steps away from Shady Palm Art Gallery & Photography. Located only 5 minutes' walk from The Turtle Hospital, this comfortable resort provides an adult-only swimming pool, massage therapy and spa services.

Located 750 feet from Shady Palm, the hotel is 3 miles from Conch-Air Florida Keys Scenic Flights. At the Tranquility Bay Resort Marathon you'll be about 100 feet from Tranquility Bay Beach House Resort. Also, Marathon Community Park is situated around 15 minutes' walk away. The accommodation is within reach of Spirit Snorkeling. This 4-star hotel is 600 feet from Marathon at 28th Street Ocean bus station.

The rooms at Tranquility Bay Resort provide guests with a flat-screen TV, as well as comforts such as an iron with ironing board and an air conditioner. They are appointed with a writing desk, and also feature a small refrigerator. Rooms are overlooking the ocean.

The on-site TJs Marathon restaurant with American cuisine is a part of this accommodation. Gastronomic options include a lounge bar.

  • Check-in
    from 16:00 until 23:59
  • Check-out
    until 11:00
  • Hotel class
    4 stars
Tranquility Bay Resort
Our tips

Should you book Tranquility Bay Resort?

Perfect if you
  • Want to explore the Florida Keys - Crane Point Museums & Nature Center is a 3-minute drive away.
  • Prefer a room with a sea view - the property offers seafront accommodations.
  • Plan to hike or visit beaches - Curry Hammock State Park is 13 minutes' drive from the resort.
Maybe skip if you
  • Travel with a pet - the resort has a strict no-pets policy.
  • Want on-site breakfast - Butterfly Café is open for dinner only, with no breakfast option available.
Best for
  • A Tiki bar situated directly on the beach with ocean views
  • A private beach providing direct access to the Gulf waters

Facilities of Tranquility Bay

General
  • No smoking on site
  • Wi-Fi
  • Parking
  • No pets allowed
  • Rooms/ Facilities for disabled
  • ATM/Cash machine
  • Fireplace
Dining
  • Restaurant
  • Bar/ Lounge area
Leisure & Sports
  • Heated swimming pool
  • Outdoor swimming pool
  • Beach access
  • Sun loungers
  • Live entertainment
  • Beauty treatment
  • Fitness centre
  • Snorkelling
  • Golf course
  • Yoga class
  • Fishing
Tranquility Bay Guest Services
  • Room service
  • Housekeeping
  • Shops/Commercial services
  • Welcome drink
  • Meeting/ Banquet facilities
  • Happy hour
Room Amenities
  • Air conditioning
  • Heating
  • Garden furniture
  • Ironing facilities
  • Bathtub
  • Cots
  • Children's menu

Policies

Tranquility Bay Resort applies these conditions to all bookings.
Check-in / Check-out
Check-in
from 16:00 until 23:59
Check-out
until 11:00
Important info
  • Children and extra beds
  • There are no extra beds provided in a room.

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Check-in
24 Sept 2026
Check-out
25 Sept 2026
Guests
2 guests

Adults:

2

Children:

0
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