I did lots of searching trying to find a Keys property my wife and kids would be happy with. Tranquility Bay was perfect for us. Although the rooms are pricey, they seemed comparable to other properties I researched.

This was perfect for our family of 5. Marathon was the perfect choice, and Tranquility Bay lived up to its name! Beautiful views, beautiful pools, putting green steps away from our lovely porch. We were pleasantly surprised to see how large our accommodations were! We will definitely return!!! Thanks for a great vacation for our family of 5 adults!

We stayed during first weekend in June. Had a 3 bedroom unit next to family pool. Upstairs bedrooms easily accomodated our family of 6 (4 kids under 12). Pictures were accurate. The property is fantastic - beautiful waterfront view, well landscaped. We fished off the rocks, sat at the tiki bar (friendly, helpful staff), rented wave runners, signed the kids... More

large family pool...adult only pool...townhouse rentals...restaurant on site...everything is an add on...limited dishes and cooking tools...grocery near by...food at resort is pricey due to extra taxes added...sand beach...water very grassy...picturesque

Our family just stayed here June 7-10th. It was absolutley beautiful. We went down to Key West for the day, which is about an hour away, and were so grateful we stayed here in Marathon. It looks exactly like the professional pictures. Because it is a Boutique property, it is not crowded, yet has its own water sports, restaurants, bar,... More

Just arrived here for 5 day stay. Stayed here previously 2 years ago. It is still beautiful. Beautiful grounds, well kept with sun and shade. Units are clean, bright, large and well maintained with all conveniences. Large decks attached to the units so you can sit outside and have the convenience a close by refrigerator for drinks and snacks or... More

We had a great time at this resort. Everything was as disclosed with no surprises. Make sure you meet Tiger, one of the resident mascots! The grounds were beautiful, everything was extremely clean, and the rooms were roomy and modern. Will plan to return sometime soon. Kudos to Summer who was a tremendous help upon check-in and during our stay.

Property was very nice and well maintained. We loved all of the iguanas and lush landscaping. Rooms were very clean and well appointed. The staff was friendly and always willing to help. Summer at the front desk was very knowledgable about the area and its surrounding. The property was appropriately quiet and super family atmosphere. I could also see staying... More

We have been to Tranquility Bay 4 times now and we always leave relaxed. the units are always clean, spacious and well looked after. The bedroons are very spacious with an ensuite and a lovely balcony off the Master. The grounds are fantastic with an adult pool which is very quiet and a family pool which is great for the... More