Tranquility Bay Beachfront Resort
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This SpaRator score weighs 40+ data points across six equally weighted categories, drawn from hotel data, booking platforms and 10,575 guest reviews from TripAdvisor, Google and Booking.com, and calibrated against 15 Florida Keys spa hotels. How SpaRator works
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Spa Hotels · Spa Pricing and Resort Fees · Wellness Travel · Hot Springs and Bathing Traditions
2600 Overseas Highway, Marathon, FL 33050View on a mapPublished · Updated
Cheapest Oct from $380 a night all-in
Choose dates for live rates.
The resort's street address is 2600 Overseas Highway.
SpaRator Expert Rating
SpaRator 6.0: ModestSpa core 4.6
An average of the Spa Treatments and Spa Facilities scores.
6.0 Modest overall · Spa: No Spa · guests rate it 4.5 on TripAdvisor
11th of 15 in Florida Keys, October 2026
At this beach resort, the spa is a room-or-villa service, not a place.
Tranquility Bay has no spa building: every treatment is delivered in your room or villa, booked by phone or text. The menu is broader than that setup suggests, with Thai, Ashiatsu and reiki beside three pools and a private beach. No 60-minute massage exists, a 25% service charge lands on every service, and the $55 resort fee excludes the spa. Right for beach-and-villa guests who want a massage in their room; wrong for anyone after a sauna, steam room, spa lounge or a 60-minute massage.
Pricing and Availability
- Peak
- Feb–Mar, Jul
- $520–$760
- Cheapest
- Oct
- $380–$430
a night all-in
Live rates for your dates load here. Compare Booking.com, Expedia, Hotels.com, Kayak and Agoda below.
Hotel's own website844-209-6758
We may earn a commission when you book through these links. It never affects a SpaRator score, and no hotel hosted or paid for this analysis. How we earn
Rate notes, fees and tax
A Saturday, 27 February 2027, priced from $641 a night. A Saturday, 21 August 2027, priced from $366 a night.
- Sat 27 Feb 2027 stay
- 27 Feb 2027 from $641 room, $790 all-in. That is the typical rate across the major booking sites for Saturday 27 February 2027, checked 7 October 2026. The hotel's flexible rate runs about 24% higher than these prepaid-level typical rates.
- Sat 21 Aug 2027 stay
- 21 Aug 2027 from $366 room, $478 all-in. That is the typical rate across the major booking sites for Saturday 21 August 2027, checked 7 October 2026. August is a shoulder-class month, not low season.
- Rate notes
Fee stack: $55 a night resort fee plus 1% destination fee, both taxed at 12.5%; free parking, one vehicle per room; 25% spa service charge on every service.
No 60-minute massage is sold.
Its 50-minute massage at $160 works out to $192 per 60 minutes, our arithmetic, not a menu price.
All-in includes the fee and tax estimated at 12.5%.
Rates correct as of October 2026; verify current availability via the booking links above.
No repositioning or renovation is stated.
Spa Treatments
Tranquility Bay's in-room spa menu is the strongest part, but every treatment is delivered only in your room or villa. The menu is wide for a spa with no building: 26 services, Thai and Ashiatsu 50-minute massages, reiki attunements on request. That score sits above the 7.1 median among the 14 other Keys hotels we have rated, with three peers at 8.0. Few guests write about the spa: one March 2026 stay praised an in-room massage booked by phone. Booking is phone or text, and the 25% service charge applies.
Spa Facilities
The Spa at Tranquility Bay is an in-room service, not a spa building. Spa services are in-room only; no sauna, steam room, hot tub, plunge pool or relaxation room is named. Two Google reviews, from January and November 2025, say there is no hot tub. That 2.0 sits far below the 4.45 median among the other 14 Keys hotels we have rated, the lowest of the 15.
Wellness Programs
Tranquility Bay's wellness offer is recreation-first: pools, beach and gym, with sauna, steam and hot tub not stated. That is just above the 6.25 median among the 14 other Keys hotels we have rated. Cheeca Lodge and Isla Bella Beach Resort run ahead. Guests describe a Thursday and Sunday 8 a.m. yoga class on the lawn, though the hotel's own pages disagree on the schedule, and the gym draws split opinions. No class is stated as free.
Staff & Service
Staff at Tranquility Bay earn more praise than complaints, though the complaints cluster around the front desk, housekeeping and food-and-beverage service. Of 441 written stay reviews, 30 (6.8%) complain about the front desk, 29 (6.6%) about housekeeping and 23 (5.2%) about food-and-beverage service. That sits below the 7.5 median among the 14 other Keys hotels we have rated. Sunset Key Cottages and Little Palm Island both score higher. Management answers nearly every review, though some guests report follow-ups that never came.
Experience
A night at Tranquility Bay comes down to dated villas, the top complaint, and recent stays running softer than the two-year picture. Across TripAdvisor and Google stays over the past two years, the mean is 4.32, against a 4.26 median among the other 13 Keys hotels with a figure. Over the past year, that mean has run 4.17. After dated villas, guests' next complaints are seaweed on the beach and construction noise.
Value for Money
Tranquility Bay undercuts most Keys peers on room rates, but the bill grows. The typical rate across the major booking sites for Saturday 27 February 2027, checked 7 October 2026, is $790 all-in, below the $1,105 median among the 14 other Keys hotels we have rated. The August 2027 typical of $478 all-in sits below the $537 median. Every spa service carries a 25% charge, and the $160 50-minute massage reads $192 per 60 minutes by our arithmetic, not a menu price.
Spa Facilities
15 spa facilities: 7 available, 1 not available, 7 not confirmed
Available
7Beauty Services Facials, scrubs and wraps, in the room
Adults-Only Pool or Area Adults-Only Pool with Gulf views, one of three pools; the other two are not stated as restricted
Couples Treatments Couple's massage priced by selection, 48 hours' notice; private yoga for two
Fitness Center Open 24 hours, Peloton bike; guests split, Google June 2026 and TripAdvisor July 2025
In-Room Spa Treatments The only way the spa is delivered, to a room or villa
Pool Facilities Lagoon, Relaxation and Adults-Only pools
Wellness Programs Weekly activities under the resort fee, bikes, volleyball, three putting greens
Not available: Full-Service Spa.
Not confirmed: Cold Therapy, Fitness Classes Included, Hammam, Himalayan Salt Room, Hot Tub and/or Jacuzzi, Sauna, Steam Room.
Other Spa Facilities
The in-room menu spans massage, mind-body, facials, body treatments and rituals, with 11 add-on enhancements from $20 to $75.
Spa Menu, Prices and Policies
- Massage$160–$250 · 50 min
- Mind-body$175 · 50 min
- Facial$175 · 50 min
- Body$175–$200 · 50 min
- Rituals$275–$300 · 80 min
- Enhancements$20–$75 · per add-on
- GratuityThere is a 25% service charge on every spa service.
- AccessSpa services are in-room only. Treatments are delivered in your hotel room or villa.
- Day passSpa services are in-room only. The spa names no day pass.
- CancellationCancel at least 48 hours ahead. Later cancellations and no-shows are charged the full amount, service charge included.
Hotel Facilities
12 hotel facilities: 5 available, 1 not available, 6 not confirmed
Available
5Beachfront Private 2.5-acre white-sand beach; Beachfront and Waterfront villas sit on it
Restaurants Butterfly Café, dinner with a kids' menu; TJ's Tiki Bar, open-air and beachfront
Bar TJ's Tiki Bar, live music Friday and Saturday
Watersports Jet ski, kayak, paddleboard, Hobie Cat, scuba and snorkeling from the beach tent
Bike Rentals Adult and child bikes outside the resort
Not available: Pet Friendly.
Not confirmed: Concierge Services, Valet Parking, Shuttle, Kids Club, Adult Only, Tennis.
Other Hotel Facilities
Tropical Garden guestrooms run 400 to 565 square feet. Two- and three-bedroom Waterview, Beachfront and Waterfront villas have full kitchens and in-unit laundry. Free self-parking covers one vehicle per room.
About This Hotel
Tranquility Bay sits on the Gulf side of Marathon as a self-contained resort with three pools, a private 2.5-acre white-sand beach, and a spa that never leaves your room, and that last part defines the offer.
The Spa, Specifically: The Spa at Tranquility Bay
The spa’s own words are “Spa services are in-room only,” and that is the offer. Every treatment is delivered in your room or villa, booked by phone or text at 305-923-9019, and cancellations run on a 48-hour window. The menu is broad for a spa with no building: 26 services across massage, mind-body, facials, body treatments and rituals, plus 11 add-on enhancements from $20 to $75. Our guide to types of spa massage covers the massage side. The spa facials explained guide covers the four facials. The body wrap guide walks through the scrubs and wraps. No 60-minute massage exists. Massages run 50 minutes, from $160 to $250, and the cheapest at $160 reads $192 per 60 minutes by our arithmetic, not a menu price. Rituals run 80 minutes, from $275 to $300. A 25% service charge is added to every service. Sauna, steam room, hot tub and a treatment location beyond the room or villa are not stated.
Who’s Right, Who’s Wrong
Right for Gulf-side families, couples and friend groups who want a villa or guestroom beside the beach and pools, with an in-room massage when wanted. Wrong for anyone booking a spa hotel for a sauna, steam room, hot tub, relaxation lounge or a 60-minute massage. That spa is a service, not a place (and a pricey one at 25% extra). A broad in-room treatment menu and rates below most Keys peers come against dated villas and a service record with uneven spells.
Where It Sits in the Florida Keys Market
Against the 14 other Keys hotels we have rated, Tranquility Bay sits 11th of the 15, with an Overall score of 6.0. Treatments are its strongest category, just above the Keys median, while its in-room-only facilities rank last among the 15. Cheeca Lodge and Isla Bella Beach Resort set the wellness pace. Little Palm Island and Sunset Key Cottages lead on service and guest record. Our Florida Keys hub ranks all 15.
| Hotel | SpaRator | Spa access for guests | Peak all-in per night | Off-season all-in per night |
|---|---|---|---|---|
| Playa Largo Resort & Spa, Autograph Collection | SpaRator 7.0: Solid | With a treatment or membership | $867 | $819 |
| Isla Bella Beach Resort & Spa | SpaRator 6.9: Modest | Not published | $757 | $582 |
| Sunset Key Cottages | SpaRator 6.8: Modest | Not published | $2,530 | $1,214 |
| Cheeca Lodge & Spa | SpaRator 6.6: Modest | With a treatment or membership | $1,347 | $591 |
| Little Palm Island Resort & Spa | SpaRator 6.6: Modest | Not published | $3,942 | $1,914 |
| Hawks Cay Resort & Villas | SpaRator 6.5: Modest | Not published | $948 | $527 |
| Hyatt Centric Key West Resort & Spa | SpaRator 6.5: Modest | Not published | $1,385 | $444 |
| Ocean Key Resort & Spa | SpaRator 6.5: Modest | Not published | $1,474 | $475 |
| Pier House Resort & Spa | SpaRator 6.5: Modest | Not published | $909 | $548 |
| Bungalows Key Largo | SpaRator 6.4: Modest | With a treatment or membership | $1,574 | $1,236 |
| Baker's Cay Resort Key Largo | SpaRator 6.0: Modest | With a treatment or membership | $891 | $406 |
| Southernmost Beach Resort | SpaRator 6.0: Modest | Not published | $892 | $334 |
| Tranquility Bay Beachfront Resort | SpaRator 6.0: Modest | No spa | $790 | $478 |
| Casa Marina Key West, Curio Collection by Hilton | SpaRator 5.6: Limited | Not published | $1,153 | $512 |
| The Reach Key West, Curio Collection by Hilton | SpaRator 5.3: Limited | Not published | $1,056 | $434 |
| Market median | 6.5 | $1,056 | $527 |
Scored on Guidelines v9.9
All-in = room, resort fee and taxes per night, from each hotel's dated rate capture.
Is the Tranquility Bay Spa Worth the Price?
Yes, for guests who want massage delivered to the room or villa plus beach and pools at below-Keys-median rates: typical all-in nights run $440 to $580. No for anyone needing a spa building, sauna, steam room or 60-minute massage. A 25% service charge explains the gap between menu price and bill.
When to Book the Tranquility Bay
February, March and July run dearest. October through January, April through June and August sit lower, with peak months about 1.6 times the low-month level, all-in. Weekends run about a fifth dearer than midweek, except March, which runs a shade below. Spa pricing is one price per service all week, and a couple's massage needs 48 hours' notice. Hours are not stated.
- January: shoulder
- February: peak
- March: peak
- April: shoulder
- May: shoulder
- June: shoulder
- July: peak
- August: shoulder
- September: not yet priced
- October: low
- November: shoulder
- December: shoulder
- Peak
- Shoulder
- Low
- Not yet priced
Typical all-in per night: Peak $520–$760 · Shoulder $430–$530 · Low $380–$430
Typical room rate across the main booking sites and the hotel's own site, 13 Oct 2026 to 31 Aug 2027, converted to all-in with the hotel's fee and tax. Months not yet priced are shown hatched.
What Guests Are Saying
TripAdvisor4.5 / 56,359+ reviews
Google4.6 / 53,667+ reviews
Booking.com8.5 / 10549+ reviews, check rates on Booking.com
I had a wonderful in-room massage.
TripAdvisorMarch 2026Stay rated 5 of 5The pools are great fun as well and being able to order food and drinks from there is a plus although they are overpriced. The beds are not the most comfortable and the villas are outdated.
TripAdvisorApril 2025Stay rated 4 of 5My main complaint was that there was an unexpected resort fee so it was actually more than what booking.com said it would be.
GoogleJuly 2026Stay rated 4 of 5Resort lacks staff that can elevate your experience. Hard to spend money when there is no one there to take your card!
GoogleApril 2025Stay rated 3 of 5It's amazing that yoga is offered twice a week here as well.
TripAdvisorMay 2026Stay rated 5 of 5The hotel staff is great and they try, unfortunately the beach is horrible due to the seaweed and smells like sewer.
GoogleNovember 2025Stay rated 3 of 5
Location
2600 Overseas Highway
Marathon, FL 33050
Frequently Asked Questions
Where Is Tranquility Bay Beachfront Resort, and How Far Is the Airport?
Tranquility Bay Beachfront Resort sits at 2600 Overseas Highway in Marathon, on the Gulf side of the Florida Keys. Free self-parking covers one vehicle per room. Neither a shuttle nor an airport drive time is stated.
Does the Spa at Tranquility Bay Sell a 60-Minute Massage?
No. Massages run 50 minutes, with 80 minutes marked extended and unpriced. The cheapest 50-minute massage at $160 works out to $192 per 60 minutes by our arithmetic, not a menu price, before the 25% service charge.
Where Do Treatments Happen?
In your hotel room or villa only. Spa services are in-room only, and no beach, cabana or outdoor treatment location is named.
How Do I Book a Treatment, and What Is the Cancellation Policy?
Call or text 305-923-9019 to book. A text confirms. Cancel at least 48 hours ahead. Later cancellations and no-shows are charged the full amount, service charge included. A couple's massage needs 48 hours' notice.
What Is the 25% Service Charge?
A mandatory 25% service charge is added to every spa service, stated in the spa's menu booklet. No separate gratuity policy is published.
What Do the Resort and Destination Fees Cover?
A $55 nightly resort fee covers bikes outside the resort, the fitness center, weekly activities and environmental interests, but not the spa. A 1% destination fee is added to the room rate, and both fees are taxed at 12.5%.
Does the Hotel Have a Sauna, Steam Room or Hot Tub?
Sauna, steam room, hot tub and whirlpool are not stated. Two Google reviews, from January and November 2025, say there is no hot tub, but the hotel's pages are silent.
What Are the Pools Like?
There are three pools: a Lagoon Pool, a Relaxation Pool in a courtyard near the Tropical Garden rooms, and an Adults-Only Pool with Gulf views. Only the Adults-Only Pool is stated as restricted, and the other two are not.
What Yoga Is Offered?
Yoga appears on the hotel's pages, but they disagree. It is not stated as free.
What Is the Minimum Age?
A spa age policy is not stated, and guests must be 21 to reserve a room.
Can Non-Guests Book Treatments?
Non-guest booking is not stated. Spa services are in-room only.
How Much Does a Massage Cost?
A 50-minute massage runs from $160 to $250 before the 25% service charge. Lypossage, the dearest massage, is $250.
What Are the Restaurants and Bars?
Butterfly Café serves dinner with a kids' menu, and TJ's Tiki Bar is open-air and beachfront with live music Friday and Saturday. Both are open to the public.
Are Pets Allowed?
No. Pets are not allowed, but service animals are welcome. Smoking is not allowed.
How This Analysis Works
Every SpaRator score is built the same way: six equally weighted categories, scored from more than 40 documented data points per property through independent spa and hotel facility research and analysis of thousands of guest reviews, then averaged, never hand-tuned. The result is a consistent, comparable rating across every property we cover. How SpaRator works
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- Platform ratings
TripAdvisor 4.5 of 5 from 6,359 reviews; Google 4.6 of 5 from 3,667 reviews; Booking.com 8.5 of 10 from 549 reviews.
- Sources
- Tranquilitybay.com and The Spa at Tranquility Bay menu booklet.
- Data gaps
- Spa hours and age policy, non-guest booking, 80-minute massage prices, whether a sauna, steam or hot tub exists, total room count, and airport drive time are not stated. All-in figures add tax at 12.5%, our own arithmetic.
- Guidelines
- Reviewed under Guidelines Version 9.9
- Version history
- October 2026 Full re-review under Guidelines Version 9.9. A returning reader should now expect an in-room-only spa: no spa building, no sauna or steam stated, a 25% service charge, and no 60-minute massage.
Commission from partner bookings never affects a SpaRator score.