A pier with a boat rental sign, a colorful building, and a calm sea.

Find Adults Only Resorts & Hotels in Long Key, FL from CA $222

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
    Sign in

  • Be picky

    Search almost a million properties worldwide

Check availability on Long Key Adults Only Resorts & Hotels

Tonight
Aug 8 - Aug 9
Tomorrow
Aug 9 - Aug 10
Next weekend
Aug 14 - Aug 16
In two weeks
Aug 21 - Aug 23

Our top choices for Long Key adults-only hotels

Exterior
Exterior
Exterior
View from property

1. Casa Morada

Casa Morada
Matecumbe
United States
Lois
CA $183
CA $222 total
includes taxes & fees
Aug 10 - Aug 11
Casa Morada
View all properties

Top Long Key Hotel Reviews

Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

8/10 Good
"Very good setting and good ideas/resort layout. When we arrived to check in, reception couldnt find our booking so took longer than expected. We asked about the sunset boat tour at reception but were told this was a third party on the beach who close at 5 so unable to get further info, would be good if the reception staff could provide more information or take bookings as they are advertising it. Food and drink at the hotel are expensive. General buildings and rooms could do with a bit of tidying up in places. Fire alarm panel in the building we were staying in was beeping with a fault most of the night so didnt manage to sleep too well."
Ashley 1-night trip
Posted 2 days ago
Tranquility Bay Beachfront Hotel and Resort

Frequently asked questions

Are there any adult-only all-inclusive resorts in Long Key?
Long Key does not have any adult-only all-inclusive resorts or hotels. But there are some options that are perfect for your next adventure, especially if you're planning to get romantic. Score serious Brownie points with your partner at Sun Outdoors Marathon. Amenities on offer here include a terrace and a picnic area. Another good option in this city sure to put you in the good books is Lime Tree Bay Resort. An ocean view and a terrace are just the start of things you're going to love about this place.
How can I find cheap adults-only hotels in Long Key?
A good way to track down cheap adults-only hotels in Long Key is with Expedia's filter tool. Narrow your search by amenities, budget and star rating to snag unbeatable rates in just a few keystrokes. You can also sort the price from lowest to highest to find the most affordable stay.
From what age can you stay in an adult-only hotel in Long Key?
The minimum age requirements may differ across properties, so check the rules of the adult-only hotel in Long Key you'd like to stay in. But typically, it's 16, 18 or 21. Whether you're searching for romantic nights, a lively party atmosphere or just some timeout from the kids, our outstanding adult-only hotels and resorts are all about making grown-ups feel special.
Are all adult-only resorts all-inclusive in Long Key?
To find out if there are any Long Key properties that have just about all you need, use our "all-inclusive" filter. Then choose hotels or resorts listed as "adults only." Bundle your hotel and flight into a vacation package for a trip where you get the whole shebang. Our all-inclusive adult-only resorts are the ideal way to kick back. With meals, drinks and activities typically part of the room rate, you'll enjoy all the benefits and none of the boisterous kids.
Why book your adults-only hotel in Long Key with Expedia?
Offering competitive prices and a fantastic variety of properties, Expedia makes it simple to find an adults-only hotel in Long Key. Splurge on a high-end resort or use our handy search filters to locate a wallet-friendly stay. From the moment you enter your travel dates to when you lock in a place that checks your boxes, Expedia is there every step of the way.
When is the best time to stay at an adult-only all-inclusive resort in Long Key?
Almost any time is a good time to stay at an adult-only all-inclusive resort in Long Key, but there are a few things you'll want to consider. Start with the time of year you'd prefer to travel. Peak season has its own special buzz, but there's usually higher demand for both flights and accommodations. Low season tends to be less hectic and less expensive. Of course, the weather plays an important part in making or breaking your vacation, so do a little research before booking your adult-only resort or hotel.
Can I cancel or change my adult-only resort booking?
Absolutely. And there may be no charge depending on the kind of adult-only resort or hotel you reserved. Check the details in your travel itinerary or visit Expedia's Trips portal for information. Haven't found your accommodations yet? Search for Long Key adult-only properties that allow full refunds — just in case. Reserve your getaway with the knowledge that wherever you stay, you'll have nothing to worry about!

Explore a world of travel with Expedia