Hotels of Earth

Southernmost Inn Adult Exclusive

★★★ 525 United Street, Key West, US

8 guest rating· 2069 reviews

About this hotel

Luxurious Adults-Only Key West Resort

Heated Pools and Tropical Themes

Indulge in luxury at our adults-only Key West resort, just steps away from Duval Street. Enjoy relaxation in one of our 2 heated outdoor pools or unwind in the hot tub. Each uniquely themed room, equipped with air conditioning and a flat-screen TV, offers a tropical escape.

Fitness Center and Wine Hour

Stay active at our on-site fitness center or bask in the sun on our spacious outdoor patio and sun deck. Join us for a delightful wine and cheese happy hour, the perfect way to wind down after a day of exploring Key West's attractions.

Prime Location and Nearby Attractions

Conveniently located near the Atlantic Ocean, our resort is a short walk from the Key West Butterfly and Nature Conservatory, the Ernest Hemingway Museum, and the iconic Southernmost Point. Book your stay now for an unforgettable Key West experience at Southernmost Inn.

Rooms & rates

Southernmost King Suite

Sleeps 4 · King bed, Sofa bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Superior Double Room

Sleeps 2 · 20 m² · King bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Southernmost King Room

Sleeps 2 · King bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Southernmost Queen Room

Sleeps 2 · 13 m² · Queen Bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Southernmost King Suite (Accessible)

Sleeps 4 · King bed, Sofa bed

  • Private bathroom
  • Bathroom grab bars
  • Portable bathtub seat
  • TV
  • Hair dryer

Southernmost Attic Room

Sleeps 1 · 13 m² · Twin bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Southernmost Deluxe King Room

Sleeps 2 · 20 m² · King bed

  • Private bathroom
  • TV
  • Hair dryer
  • Refrigerator
  • Bottle of water

Southernmost Attic Single Bed

Sleeps 1 · 13 m² · Twin bed

  • Air conditioning
  • Private bathroom
  • Shower
  • TV
  • Hair dryer

King Suite - Disability Access

Sleeps 4 · 28 m² · Extra-large double bed (Super-king size), Sofa bed

  • Air conditioning
  • Private bathroom
  • Adapted bath
  • Shower
  • TV

Deluxe King Room

Sleeps 2 · 21 m² · Extra-large double bed (Super-king size)

  • Desk
  • Air conditioning
  • Private bathroom
  • Shower
  • TV

Amenities

  • Free WiFi
  • Heated pool
  • Outdoor pool
  • Swimming pool
  • Air conditioning
  • Sun loungers or beach chairs
  • Tour desk
  • Non-smoking rooms
  • Adult only
  • Bike tours
  • Board games/puzzles
  • Concierge service
  • Cycling
  • Daily housekeeping
Show all 38 amenities
  • Designated smoking area
  • Diving
  • Facilities for disabled guests
  • Fax/photocopying
  • Fire extinguishers
  • Fishing
  • Garden
  • Happy hour
  • Higher level toilet
  • Hot tub/Jacuzzi
  • Key card access
  • Lower bathroom sink
  • Luggage storage
  • Outdoor furniture
  • Security alarm
  • Shared lounge/TV area
  • Smoke alarms
  • Snorkelling
  • Sun terrace
  • Sun umbrellas
  • Terrace
  • Vending machine - snacks
  • Wheelchair accessible
  • Wine/champagne

Location

© OpenStreetMap contributors

525 United Street, Key West, US

Check-in
from 04:00 PM to 12:00 AM
Check-out
until 11:00 AM

What guests say82069 reviews

+ Good location+ Friendly staffCleanliness issuesPoor breakfast quality
Cleanliness7.3
Service8.8
Location9.3
Room Quality7.8
Amenities8.3
Value for Money7.3

Fair.

4.0

Location

Rooms were small. No power outlets. Not the cleanest.

Jennifer · US · 2026-07-25

Guest review

10.0

Manager was very helpful and accommodating

Frederick · US · 2026-07-24

Awesome location, small room, great experience

7.0

Location was great because it was really close to the south end of Duval but not in the super busy area. Really nice to get away from that when we wanted but still walkable to the places we wanted to see. They also had bikes for us to rent which was very convenient

My only complaint was the size of the room which we already knew and were ready for. We missed not having a dresser for clothes or dedicated space for the suitcases but even then, I'm only nit picking

Frank · US · 2026-07-21

Incredible. Would change nothing. Definitely staying here when I come back to Key West

10.0

Everything. Empty clean pool. If you behave security doesn’t bother. Crisp pool.

Absolf******utely nothing was disliked. 90% of the time it felt like it was just me by myself the whole time staying. 10/10

Andy Gabriel · US · 2026-07-20

Great reception person el

8.0

Was adequate

The room And bathroom were sleepery. One of fell because of the bathroom floor Not properly Cleaner and soapy. Very dsmgerous

Mimi · US · 2026-07-20

Guest review

8.0

Swimmingpool

Frukost

Cedo · SE · 2026-07-17

Good to know

Parking is limited and is not guaranteed.

All parking is sold on a first come first serve basis and cannot be reserved in advance.

Please see the front desk upon arrival for availability.

Parking is not available for boats, trailers, RVs, or oversize vehicles of any kind and will be towed at owner's expense.Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.

Please inform of your expected arrival time in advance. You can use the Special Requests box when booking, or contact the property directly using the contact details in your confirmation.

Internet

WiFi is available in all areas and is free of charge.

Parking

No parking available.

Children and extra bed policy

Children are not allowed.

You haven't added any cots.

You haven't added any extra beds.

Pets

Pets are not allowed.

Groups

No special conditions apply for groups.