Find Adults Only Resorts & Hotels in Keystone, SD from $177

Top Adults only hotels in Keystone

EO Bungalows – Adults Only
3 out of 5
28 N 7th street, Custer, SD
$161 nightly
The price is $177 total per night from Aug 10 to Aug 11
$177 total
Aug 10 - Aug 11
Total includes taxes and fees
9.6/10 Exceptional! (63 reviews)
"Loved everything about it! The Shower was a delight, The management was fabulous! Hi 100 I'm coming back!"

Reviewed on Jul 23, 2025

EO Bungalows – Adults Only
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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.

Frequently asked questions

Are there any adult-only all-inclusive resorts in Keystone?
Unfortunately, there aren't any adult-only all-inclusive hotels or resorts in Keystone. But don't let that put you off your romantic plans! Whisk your sweetie away to K Bar S Lodge, Ascend Hotel Collection and enjoy some blissful alone time. Wedding services and mountain views are two amenities on offer here. Black Elk Resort Cottages And Rv Park is another good option perfect for lovebirds. This intimate escape comes with mountain views and windsurfing.
What is there to do in Keystone near my adults-only hotel?
You'll find loads of fun things to do and see in Keystone. Check out well-known attractions like Rushmore Cave, Rushmore Tramway Adventures and Mount Rushmore. Presidential Trail, National Presidential Wax Museum and Big Thunder Gold Mine are other must-see's.
How can I find cheap adults-only hotels in Keystone?
Expedia is here to help you search for cheap adults-only hotels in Keystone. Simply try out the filter tool to select amenities, budget and star rating to refine your search results and find the perfect stay in a couple of clicks.
From what age can you stay in an adult-only hotel in Keystone?
In general, it's 16, 18 or 21. The adult-only hotels and resorts in Keystone may have different age requirements, so read the rules of the property you have your eye on before reserving your room. Whether you're planning a romantic vacation or a bachelor party, Expedia's adult-only hotels have all the essentials for an unforgettable grown-up getaway.
Are all adult-only resorts all-inclusive in Keystone?
If you just want to vacation at a resort or hotel where practically everything you need is covered by the room rate, make use of our "all-inclusive" filter. This will show you suitable adult-only all-inclusive retreats in Keystone that will usually include your drinks, food and the room, a host of on-site activities and entertainment. Check out the resort you're keen on to discover what's included in the price.
Why book your adults-only hotel in Keystone with Expedia?
Expedia has an excellent selection of adults-only hotels at the best rates in Keystone. Simply use our search filters to select how much you'd like to spend and then sort the results by price. Whether you're planning a relaxing couples escape or want to party with pals, we'll help you find the ideal space.
When is the best time to stay at an adult-only all-inclusive resort in Keystone?
Just about any time is a good time to stay at an adult-only all-inclusive resort in Keystone, but there are a few things worth thinking about. Start with the time of the year you want to travel. Peak season is exciting and popular, but there's usually higher demand for accommodations and flights. Low season tends to be quieter and kinder to your bank balance. Of course, the weather is a very important part in making or breaking your vacation, so do some research before locking in your adult-only resort or hotel.
Can I cancel or change my adult-only resort booking?
You sure can. Depending on the kind of booking you made and how close you are to your check-in date, you may not be charged. Rules can vary among our adult-only hotels and resorts, so check the details in your itinerary or head to Expedia's Trips portal for help. If you'd like to make your escape to Keystone as worry-free as possible, select adult-only properties that allow a full refund.

Top Keystone Hotel Reviews

Under Canvas Mount Rushmore

Under Canvas Mount Rushmore

10/10 Excellent
"Very much enjoyed our camping experience."
Anonymous traveler 3-night trip
Posted 18 hours ago
Under Canvas Mount Rushmore