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Grassy Flats Resort & Beach Club

2.5 star property

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Photo gallery for Grassy Flats Resort & Beach Club

Exterior
Beach bar
Deluxe Room, 1 King Bed, Oceanfront - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi
Bar (on property)
Balcony view

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Bar
  • Pet friendly
  • Parking included
$306
includes taxes & fees
Dec 3 - Dec 4

Explore the area

View in a map
58182 Overseas Hwy, Marathon, FL, 33050
  • Place, Dolphin Research Center
    ‪17 min walk‬
  • Place, Curry Hammock State Park
    ‪2 min drive‬
  • Place, Coco Plum Beach
    ‪11 min drive‬
  • Airport, Marathon, FL (MTH-Florida Keys Marathon)
    ‪16 min drive‬

Room options

View all photos for Family Suite, 2 Bedrooms

Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Family Suite, 2 Bedrooms

8.0 out of 10
Very good
(6 reviews)
  • 2 bedrooms
  • Ocean view
  • Sleeps 4
  • 2 Queen Beds

View all photos for Family Suite, 2 Bedrooms, Accessible

Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Family Suite, 2 Bedrooms, Accessible

10.0 out of 10
Exceptional
(2 reviews)
  • 2 bedrooms
  • Sleeps 4
  • 2 King Beds

View all photos for Family Suite, 3 Bedrooms

Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Family Suite, 3 Bedrooms

  • 3 bedrooms
  • Ocean view
  • Sleeps 6
  • 1 King Bed and 2 Queen Beds

View all photos for Standard Double Room, Ocean View - Adults Only

Standard Double Room, Ocean View - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Standard Double Room, Ocean View - Adults Only

9.6 out of 10
Exceptional
(16 reviews)
  • Ocean view
  • Sleeps 2
  • 2 Queen Beds

View all photos for Standard Room, Ocean View - Adults Only

Standard Room, Ocean View - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Standard Room, Ocean View - Adults Only

9.8 out of 10
Exceptional
(25 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Luxury Room, 1 King Bed, Ocean View - Adults Only

Luxury Room, 1 King Bed, Ocean View - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Luxury Room, 1 King Bed, Ocean View - Adults Only

10.0 out of 10
Exceptional
(2 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Deluxe Room, 1 King Bed, Oceanfront - Adults Only

Deluxe Room, 1 King Bed, Oceanfront - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Deluxe Room, 1 King Bed, Oceanfront - Adults Only

9.6 out of 10
Exceptional
(4 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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About this property

Grassy Flats Resort & Beach Club

Marathon hotel steps from Coco Plum Beach
Along with 2 outdoor pools, this smoke-free hotel has a restaurant and a bar/lounge. Free WiFi in public areas and free self parking are also provided. Additionally, a poolside bar, concierge services, and ATM/banking services are onsite. Housekeeping is available on request.
Grassy Flats Resort & Beach Club offers 38 accommodations, which are accessible via exterior corridors and feature hair dryers and irons/ironing boards. Rooms open to furnished balconies or patios. 43-inch flat-screen televisions come with premium cable channels.

Guests can surf the web using the complimentary wireless Internet access. Additionally, rooms include complimentary toiletries and blackout drapes/curtains. Hypo-allergenic bedding, change of towels, and change of bedsheets can be requested. Housekeeping is provided on request.

2 outdoor swimming pools are on site.

The recreational activities listed below are available either on site or nearby; fees may apply.

Grassy Flats Resort & Beach Club features 2 outdoor swimming pools. The hotel offers a restaurant. Guests can unwind with a drink at one of the hotel's bars, which include a poolside bar and a bar/lounge. Public areas are equipped with complimentary wireless Internet access.

This Marathon hotel also offers multilingual staff, concierge services, and an ATM. Complimentary self parking is available on site, along with a car charging station. A total renovation of this property was completed in March 2022.

Grassy Flats Resort & Beach Club is a smoke-free property.

Cooked-to-order breakfasts are available for a surcharge and are served each morning between 6:00 AM and 11:00 AM.
The Rhum House - Overlooking the ocean, this fine-dining restaurant serves dinner only. Guests can enjoy drinks at the bar.

Property amenities

Internet

  • Available in all rooms: Free WiFi
  • Available in some public areas: Free WiFi

Parking and transportation

  • Electric car charging station on site
  • Free self parking on site

Food and drink

  • Daily cooked-to-order breakfast available 6:00 AM to 11:00 AM for a fee: USD 5 to 30 per person
  • A bar/lounge
  • A poolside bar
  • A restaurant

Restaurants on site

  • The Rhum House

Things to do

  • 2 outdoor pools
  • Bicycle rentals
  • Bicycle storage
  • Ecotours
  • Fishing
  • Kayaking
  • Paddleboard
  • Personal motorized watercraft
  • Sailing
  • Water sports equipment
  • Windsurfing

Family friendly

  • 2 outdoor pools
  • Pool gate

Conveniences

  • ATM
  • Limited-hour front desk
  • Water dispenser

Guest services

  • Change of bedsheets (on request)
  • Change of towels on request
  • Concierge services
  • Housekeeping (on request)
  • Multilingual staff

Outdoors

  • Beach loungers
  • Beach towels
  • Beach umbrellas
  • Dock
  • Firepit
  • Outdoor furniture
  • Pool loungers
  • Pool umbrellas

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Elevator (36 inch wide door)
  • Pool hoist on site
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible path of travel
  • Wheelchair-accessible path to elevator
  • Wheelchair-accessible pool
  • Wheelchair-accessible public washroom
  • Wheelchair-accessible restaurant

More

  • 3 buildings
  • 3 floors
  • At least 80% lighting from LEDs
  • At least 80% of food locally-sourced
  • At least 80% organic food
  • Biodegradable coffee stirrers available
  • Biodegradable drinking straws available
  • Comprehensive food waste policy
  • Comprehensive recycling policy
  • Eco-friendly cleaning products used
  • Local artist showcase
  • No plastic coffee stirrers
  • No plastic drinking straws
  • No plastic soft drink bottles
  • No plastic water bottles
  • Renovated entire property - March 2022
  • Reusable cups
  • Reusable tableware
  • Smoking not allowed
  • Vegan dining options
  • Vegetarian breakfast available
  • Vegetarian dining options
  • Water dispenser usage encouraged

Room amenities

Bedroom

  • Bedsheets provided
  • Blackout drapes
  • Hypo-allergenic bedding

Bathroom

  • Free toiletries
  • Hair dryer
  • Shampoo
  • Soap
  • Toilet paper
  • Towels provided

Entertainment

  • 43-inch flat-screen TV with premium cable channels

More

  • Access via exterior corridors
  • Air conditioning (climate-controlled)
  • Bulk dispensers for toiletries
  • Cleaning products are eco-friendly
  • Eco-friendly toiletries
  • Electrical adapters
  • Energy-saving switches in guestrooms
  • Iron/ironing board
  • LED lighting
  • Recycling
  • Water-efficient showers
  • Water-efficient toilets

Policies

Check-in

Check-in start time: 4:00 PM; Check-in end time: 9:00 PM
Late check-in subject to availability
Minimum check-in age: 21

Check-out

Check-out before 11:00 AM
Late check-out subject to availability
A late check-out fee will be charged

Special check-in instructions

The front desk is open daily from 8:00 AM - 8:00 PM
Front desk staffed during limited hours
If you are planning to arrive after 9:00 PM please contact the property in advance using the information on the booking confirmation

Renovations and closures

The following facilities will be closed during the summer:
  • Bar/Lounge

Access methods

Front desk (limited hours)

Pets

Pets allowed for an extra charge of USD 50 per accommodation, per night
Service animals are welcome, and are exempt from fees
Welcoming dogs only
Up to 30 lbs per pet
Pets cannot be left unattended

Children and extra beds

Children are welcome
Rollaway/extra beds are not available
Cribs (infant beds) are not available

Property payment types

Important information

Optional extras

  • Fee for cooked-to-order breakfast: approximately USD 5 to 30 per person
  • Pet fee: USD 50 per accommodation, per night
  • Service animals are exempt from fees
  • Late check-out is available for a fee (subject to availability)

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

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
The name on the credit card used at check-in to pay for incidentals must be the primary name on the guestroom reservation
Guests must contact this property in advance to reserve cribs/infant beds
This property accepts credit cards, debit cards, and cash
Cashless transactions are available
This property uses eco-friendly cleaning products
Safety features at this property include a carbon monoxide detector, a fire extinguisher, a smoke detector, and a first aid kit
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

We should mention

Pool access available from 7:00 AM to 10:00 PM
Only registered guests are allowed in the guestrooms
Some facilities may have restricted access; guests can contact the property for details using the contact information on the booking confirmation
This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly)

Property is also known as

Grassy Flats & Club Marathon
Grassy Flats Resort & Beach Club Marathon
Grassy Flats Resort & Beach Club Hotel Marathon
Grassy Flats Resort & Beach Club Hotel
Grassy Flats & Club Marathon
Grassy Flats Resort & Beach Club Hotel
Grassy Flats Resort & Beach Club Marathon
Grassy Flats Resort & Beach Club Hotel Marathon

Grassy Flats Resort & Beach Club Reviews

Reviews

9.4

Exceptional

Rating 10 - Excellent. 262 out of 329 reviews
Rating 8 - Good. 36 out of 329 reviews
Rating 6 - Okay. 22 out of 329 reviews
Rating 4 - Poor. 5 out of 329 reviews
Rating 2 - Terrible. 4 out of 329 reviews

9.6/10

Cleanliness

9.6/10

Staff & service

9.0/10

Amenities

9.4/10

Property conditions & facilities

9.4/10

Eco-friendliness

Reviews

4/10 Poor

Lauren

Traveled with family
Disliked: Cleanliness, amenities, property conditions & facilities
The smell was very disapponiting i know its out of the control of the hotel. But it was hard to enjoy the outdoors. As for the hotel it had a very musky smell and i had to switch rooms. They did put me in a bigger room and it smelled better however was older looking needs work and updating. I did not recieve silver benefits all at.
Stayed 2 nights in Aug 2025

10/10 Excellent

Scott

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Paradise in Paradise.

From check in, to the pool bar, to BB at the outside cabana sports area, the staff was awesome. Location is great, even during lobster mini season. Everything you could want or need you can do right there at the resort. Room was super clean and everything was just nice and relaxing. Could not recommend this place more, if you are looking for paradise in paradise.
Stayed 3 nights in Jul 2025

10/10 Excellent

Marcos

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in Aug 2025

8/10 Good

Alisha

Traveled with family
Liked: Cleanliness, staff & service, amenities
Nice quiet stay. Pools were nice. Beach is advertised but not really usable for swimming, snorkeling, etc. The bathtub faucet didn’t work and our air conditioner wasn’t functioning properly - it was always 75-76 degrees inside, which made for uncomfortable sleep. We were told maintenance would come, but they never did. Ceiling fans would have been helpful. Beds were just okay.
Stayed 3 nights in Jul 2025

10/10 Excellent

Eduardo

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jul 2025

10/10 Excellent

Michelle

Stayed 2 nights in Jul 2025

10/10 Excellent

Falinda

Traveled with group
Liked: Cleanliness, staff & service, property conditions & facilities
Quiet and relaxing atmosphere. With wonderful staff.
Stayed 4 nights in Jul 2025

4/10 Poor

Deborah

Traveled with partner
Liked: Cleanliness
Disliked: Staff & service, amenities
The rooms are beautiful. Kudos to the interior designer. However, the restaurants and bars were closed. Only lukewarm water in the showers. Our a/c broke and we had to change rooms. No room cleaning or fresh towels provided. Receptionist not friendly or inviting. Beach full of seaweed with a smell that permeated the hotel (not the hotels fault) but not pleasant for guests just the same. It was our second visit. We won't be going back.
Stayed 2 nights in Jul 2025

10/10 Excellent

Julie

Traveled with partner, Traveled with pets
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Grassy flats resort and beach club in marathon Florida is an absolute gem! Most of the rooms have a tranquil beautiful blue Altantic view and are very clean. The staff is attentive and hospitable. It has several restaurants with amazing food options. It has two pools, one for families and one adult pool. There are also many activities right on site like kiteboarding. I highly recommend this gem of a resort!
Stayed 3 nights in Jul 2025

6/10 Okay

Leslye

Stayed 2 nights in Jul 2025

6/10 Okay

Steven

Traveled with group
Liked: Cleanliness, amenities
Property is unique, two separate pools. One for families and another for adults only. Front desk staff friendly and helpful. Great ocean views. Outside tiki bar was nice with music in the evening. Day time bartender was very nice, evening bartender seemed moody. Land and Sea market was wonderful, great food, coffee, and staff. We did not try the on site restaurant, other guests stated the food was good but spendy. Couple of unfortunate things. One ice machine broke and the second one had been removed. No microwave in the room. When the tide goes out the smell of the seaweed is overwhelming, although you get used to it. Also no alcohol allowed at the pool. Our rooms were nice and enjoyed the couple days spent here, feel it could be more affordable what it is.
Stayed 2 nights in Jul 2025

10/10 Excellent

Jeffrey

Liked: Cleanliness, property conditions & facilities
Expedia messed up our rental and the resort was very accommodating. Would recommend booking through the resort directly and not through Expedia
Stayed 2 nights in Jul 2025

10/10 Excellent

Timothy

Amazing views, the staff was excellent and very friendly. Will definitely be staying here again
Stayed 5 nights in Jun 2025

10/10 Excellent

Michael

Stayed 1 night in Jun 2025

10/10 Excellent

Bobbi

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We had an amazing stay! The property was beautiful. The breeze was amazing! We loved the option between a hot tub and pool and the face that you had a couple of restaurants on site was amazing! I love to run and there is a bike and walking trail right across from the resort. We had an amazing time. The only thing I would change would be sometimes the smell from the ocean not being up...other than that it was an amazing stay!
Stayed 6 nights in Jun 2025

10/10 Excellent

Todd, nixa

Traveled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Loved the quiet adult pool. So relaxing
Stayed 5 nights in Jun 2025

10/10 Excellent

Jack

Stayed 2 nights in Jun 2025

10/10 Excellent

Thomas

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Excellent

We enjoyed our stay in Grassy Flats. The staff were very helpful when our hire car broke down!
Stayed 4 nights in May 2025

10/10 Excellent

Andrea

Stayed 4 nights in Jun 2025

10/10 Excellent

Sonja L

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Absolutely beautiful!! Room was great, views where amazing. Definitely plan on staying here again!
Stayed 1 night in Jun 2025

10/10 Excellent

Stephen

Stayed 2 nights in Jun 2025

10/10 Excellent

Cindy

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We were on our honeymoon. We had a very nice relaxing trip. The pool was clean, the view was great, and the service excellent. The location was ideal. It was a short drive to everything we wanted to do. All the lady’s at the front desk were so helpful and gave us must see spots. But we were able to come back to a beautiful and calm room. We stayed on the top floor and had a great view of the ocean.
Stayed 4 nights in May 2025

10/10 Excellent

Carmen

Traveled with group
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful, great staff, quiet with an amazing view. Loved the adult pool option. The room was beautiful and the bathroom was amazing. Loved the staff! The perfect place to escape.
Stayed 1 night in May 2025

10/10 Excellent

Eileen

Liked: Cleanliness, property conditions & facilities
The front desk staff was so helpful with my early check in. I also got to meet the main owner of the resort (Wilma) who was very welcoming with her purring and head bumps🐱🐈, she definitely made my stay 100 times better! The rooms were spacious, clean, and comfortable with a beautiful view. I’ll be returning the next time I visit the Florida keys!
Stayed 1 night in May 2025

10/10 Excellent

Frank

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in May 2025