Marathon Adults Only Holidays
Book a Adults Only Hotel + Flight or Car together to unlock savings
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Better together
Save up to £335 when you book a flight and hotel together*
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With over 300,000 hotels worldwide, it's easy to create a perfect package
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Packages with flights are ATOL protected
Top Adults Only Marathon Hotels
Tranquility Bay Beachfront Hotel and Resort
2600 Overseas Hwy, Marathon, FL
Stay at this 4-star beach hotel in Marathon. Enjoy free Wi-Fi, free parking and 3 outdoor pools. Our guests praise the pool and the helpful staff in their reviews. ...
8.8/10 Excellent! (1,001 reviews)
"The property had many problems with the gates and our wristband (keys)… which made getting around very inconvenient. And they knew about the problems each time I brought them up and it didn’t seem like they cared to fix the problems."
Reviewed on 27 Jun 2025
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages. Flight-inclusive packages are ATOL protected.