When you stay at this hotel in Islamorada, you'll be by the sea, within a 5-minute drive of Windley Key Fossil Reef Geological State Park and History of Diving Museum. .This hotel is 1.9 mi (3 km) from Islamorada Brewery & Distillery and 2.3 mi (3.8 km) from Keys History & Discovery Center.
What's nearby
Theater of the Sea - 11 min walk - 0.9 km
Windley Key Fossil Reef Geological State Park - 11 min walk - 0.9 km
Florida Keys Brewing Co. - 5 min drive - 5.0 km
Founders Park - 6 min drive - 6.4 km
Islamorada County Park - 6 min drive - 6.7 km
Getting around
Marathon, FL (MTH-Florida Keys Marathon) - 42 min drive
Set on 15 oceanfront acres in Islamorada, Three Waters Resort & Marina features island-inspired rooms. Guests enjoy three pools, beach and marina access, on-site dining, a water taxi to sister properties, and guided fishing or water sports for a full Keys experience.
This listing is for a room within a hotel.
✦ Your room is 338 sq. ft, equipped with complimentary toiletries, TV.
✦ Daily cleaning services included in the nightly price.
There are a few additional details to know before you book:
✦ The minimum age required for check-in is 21 years old.
✦ Please ensure you have a valid ID for check-in, as it is mandatory for entry.
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Guest Access: During your stay, you will have access to the property and amenities according to the following schedule:
✦ Check-in is available from 04:00 pm.
✦ Fitness center is available.
✦ Outdoor pool available all year.
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Other Things to Note: There are several additional things to note:
✦ A credit/debit card is required at check-in for a $100 per night refundable deposit, returned after check-out if no damages occur.
✦ A mandatory resort fee of $49.00 per night will be collected upon check-in, not included in the daily rate.
✦ Pets are welcome. $150 USD non-refundable pet fee per room per stay
✦ We use multi-unit listings, so rooms are similar but may have small differences.
There's a private balcony. Complimentary wireless internet access is available to keep you connected. Conveniences include a phone, as well as a refrigerator and a coffee/tea maker.
Pamper yourself with onsite massages or enjoy recreation amenities such as a fitness center.
Breakfast is available for a fee.
Guests will find features like onsite parking.
Property amenities
Internet
Available in all rooms: Free WiFi
Food and drink
Breakfast available for a fee
Things to do
Bicycles
Boat
Communal pool
Golf
Gym
Kayak
Water sports equipment
Guest services
Concierge services
Housekeeping (limited availability)
Spa
Massage
Accessibility
Lift
More
Smoke-free property
Room amenities
Bedroom
Bedsheets provided
Bathroom
Hair dryer
Towels provided
Entertainment
TV with cable/satellite channels
Food and drink
Coffee/tea maker
Refrigerator
More
Air conditioning
Heating
Phone
Policies
Check-in
Check-in time starts at 4:00 PM
Minimum check-in age: 21
Check-out
Check-out before 11:00 AM
Special check-in instructions
You will receive an email from the host with check-in and check-out instructions
Pets
Pets allowed
Service animals are welcome, and are exempt from fees
Note from host: $150 USD non-refundable pet fee per room per stay
Children and extra beds
Children are welcome
Important information
You need to know
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
Onsite parties or group events are strictly prohibited
Safety features at this property include a carbon monoxide detector, a fire extinguisher, a smoke detector, a first aid kit, and a deadbolt lock
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room
This property is managed through our partner, Vrbo. You will receive an email from Vrbo with a link to a Vrbo account, where you can change or cancel your reservation
We should mention
A car is not required for transportation to and from this property
All reviews shown are from real guest experiences. Only travellers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.
Rating 10 - Excellent. 7 out of 9 reviews
10 - Excellent
7
Rating 8 - Good. 0 out of 9 reviews
8 - Good
0
Rating 6 - Okay. 2 out of 9 reviews
6 - Okay
2
Rating 4 - Poor. 0 out of 9 reviews
4 - Poor
0
Rating 2 - Terrible. 0 out of 9 reviews
2 - Terrible
0
9.8/10
Cleanliness
Reviews
10/10 Excellent
Tara W.
12 June 2025
Liked: Cleanliness
Perfect Getaway
We were traveling for my daughter’s high school graduation. This location and property were perfect! The convenience of having the restaurants and bar right there was perfect.
Tara W.
Stayed 2 nights in Jun 2025
6/10 Okay
Melvin M.
12 May 2025
Liked: Cleanliness
Potential for greatness
The place was re-done and physically speaking they did an OK job. We had stayed at previous under Postcard Inn. The checking was fine, but we found out about a bunch of amenities available for guest that were never mentioned when checking in. Matter fact we ended up spending over 400 when they had a water taxi that we could have used. Also, today I still don't have the checkout itemized summary. Marina likewise, physical OK, but broken boat pedestals and ladder steps do not say brand new either. Their use of dockwa for slip assignments was terrible, assigned us a slip our boat was not designed for. We really like to location, but this is sub-optimal for being "renovated"M.Martinez MD
Melvin M.
Stayed 3 nights in May 2025
10/10 Excellent
Emily F.
5 May 2025
Liked: Cleanliness
Chill, Awesome Location
Third time staying here - new owner this time. Great spot if you want to stay on “campus.” All of the amenities they provide are perfect for couples and families.
Emily F.
Stayed 4 nights in Apr 2025
6/10 Okay
Maria K.
29 Apr 2025
Liked: Cleanliness
Inaccurate Listing / Fantastic Property
The Room is located at the Three Water Resort & Marina. The Resort completed a FULL renovation in October 2024 and is spectacular!NOTE - The Room as listed is NOT an Oceanview Room. Additional charges incurred, but not noted in the listing, include a Resort Fee of 59/night and daily taxes.
Maria K.
Stayed 4 nights in Apr 2025
10/10 Excellent
regina h.
28 Mar 2025
Liked: Cleanliness
Paradise
Amazing location and property! Very clean, and everything was amazing! Felt so relaxed the whole 6 days ! Will definitely be back!
regina h.
Stayed 6 nights in Mar 2025
10/10 Excellent
Tonya H.
27 Mar 2025
Liked: Cleanliness
Beautiful
We loved every single thing about this resort. Stunning views. Great amenities. Beautiful room. Very quiet room. Comfy beds. Good restraints right on sight. We live the Islamorada area and have stayed at different places this is definitely top tier
Tonya H.
Stayed 2 nights in Mar 2025
10/10 Excellent
linda w., raleigh
1 Mar 2025
Liked: Cleanliness
Lovely
Great beaches. Views of ocean. 3pools. Everywhere we ate was delicious . We were very impressed with the graciousness of staff
linda w.
Stayed 5 nights in Feb 2025
10/10 Excellent
Sammie C.
24 Feb 2025
Liked: Cleanliness
Perfect Getaway
Great location. Check-in and service great-as expected with a Marriott! We had stayed here before when it was post card inn. More commercialized and not as boutique...but still great!
Sammie C.
Stayed 3 nights in Feb 2025
10/10 Excellent
Stephen S., Lake Lotawana, MO
9 Dec 2024
Liked: Cleanliness
Long weekend getaway
The property was absolutely gorgeous. Rooms very clean and had a great view of the ocean.