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Grassy Flats Resort & Beach Club

2.5 star property
Beachside hotel with 2 outdoor pools

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Photo gallery for Grassy Flats Resort & Beach Club

Relax by the pool surrounded by palm trees and lounge chairs.
Property video
Enjoy meals in a shaded outdoor dining area with ocean views.
Relax in a casual, tropical setting with a rustic bar area surrounded by lush greenery and a thatched roof.
Relax in this spacious room with a large bed, desk, and seating area, plus a balcony offering a view of the outdoors.

Popular amenities

  • Bar
  • Pet friendly

Room options

Check availability for these dates

Tonight

Aug 1 - Aug 2
Check availability for tonight Aug 1 - Aug 2

Tomorrow

Aug 2 - Aug 3
Check availability for tomorrow Aug 2 - Aug 3
Available filters for rooms
Showing 7 of 7 rooms

View all photos for Family Suite, 2 Bedrooms

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 2 Bedrooms

8.0 out of 10
Very good
(6 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Kitchen
Full-sized refrigerator/freezer
Dining table
Dishwasher
Flat-screen TV
Hypo-allergenic bedding
  • Ocean view
  • Sleeps 4
  • 2 Queen Beds

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

Standard Room, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Standard Room, Ocean View - Adults Only

9.8 out of 10
Exceptional
(23 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Renovated in 2022
Blackout drapes/curtains
2 bedrooms
  • 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 | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Deluxe Room, 1 King Bed, Oceanfront - Adults Only

9.6 out of 10
Exceptional
(4 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Renovated in 2022
Blackout drapes/curtains
2 bedrooms
  • Ocean view
  • Sleeps 2
  • 1 King Bed

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

Standard Double Room, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Standard Double Room, Ocean View - Adults Only

9.6 out of 10
Exceptional
(16 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Renovated in 2022
Blackout drapes/curtains
2 bedrooms
  • Ocean view
  • Sleeps 2
  • 2 Queen Beds

View all photos for Family Suite, 2 Bedrooms, Accessible

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 2 Bedrooms, Accessible

10.0 out of 10
Exceptional
(2 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Kitchen
Full-sized refrigerator/freezer
Dining table
Dishwasher
Flat-screen TV
Hypo-allergenic bedding
  • Sleeps 4
  • 2 King Beds

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

Luxury Room, 1 King Bed, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

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

10.0 out of 10
Exceptional
(2 reviews)

Highlights

Furnished balcony or patio
Air conditioning
Mini-fridge
Flat-screen TV
Hypo-allergenic bedding
Renovated in 2022
Blackout drapes/curtains
2 bedrooms
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Family Suite, 3 Bedrooms

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 3 Bedrooms

Highlights

Furnished balcony or patio
Air conditioning
Kitchen
Full-sized refrigerator/freezer
Dining table
Dishwasher
Flat-screen TV
Hypo-allergenic bedding
  • Ocean view
  • Sleeps 6
  • 1 King Bed and 2 Queen Beds

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Property grounds

Isla Bella Beach Resort & Spa

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  • Spa
  • Pet friendly
  • Free WiFi
9.2 out of 10, Wonderful, 1,010 reviews
Isla Bella Beach Resort & Spa

About the neighborhood

Map
58182 Overseas Hwy, Marathon, FL, 33050

What's nearby

  • Dolphin Research Center - 19 min walk - 1.1 miles
  • Curry Hammock State Park - 2 min drive - 0.9 miles
  • Little Conch Key - 6 min drive - 5.2 miles
  • Coco Plum Beach - 11 min drive - 6.6 miles
  • Sombrero Beach - 19 min drive - 12.5 miles

Getting around

  • Marathon, FL (MTH-Florida Keys Marathon) - 9 min drive

Restaurants

  • ‪Island Fish Company - ‬6 min drive
  • ‪Angler and Ale - ‬4 min drive
  • ‪Sparky's Landing Fish and Cocktails - ‬6 min drive
  • ‪Driftwood Pizza Pasta - ‬8 min drive
  • ‪The Wreck Galley & Grill - ‬12 min walk

About this property

Grassy Flats Resort & Beach Club

Hotel remodeled in 2022 and located near Coco Plum Beach
Located close to Curry Hammock State Park, Grassy Flats Resort & Beach Club provides a poolside bar, a firepit, and a bar. With a private beach, sun loungers, and sailing, this hotel is the perfect place to soak up some sun. The on-site restaurant, The Rhum House, features ocean views and dinner. Enjoy onsite activities like fishing, kayaking, and ecotours. Guests can connect to free in-room WiFi.
You'll also enjoy perks such as:
  • 2 outdoor pools with sun loungers and pool umbrellas
  • Free self parking
  • Cooked-to-order breakfast (surcharge), bike rentals, and an electric car charging station
  • A dock, outdoor furniture, and beach towels
  • Guest reviews speak highly of the helpful staff and first-rate property condition
Room features
All guestrooms at Grassy Flats Resort & Beach Club feature comforts such as air conditioning, in addition to amenities like free WiFi.
More amenities include:
  • Recycling, LED light bulbs, and eco-friendly cleaning products
  • Eco-friendly toiletries and hair dryers
  • 43-inch flat-screen TVs with premium channels
  • Furnished balconies or patios, housekeeping, and electrical adapters/chargers

Languages

English, Spanish

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
  • On a private beach
  • Outdoor furniture
  • Pool loungers
  • Pool umbrellas

Accessibility

  • No elevator

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: 3:00 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
A late check-out fee will be charged

Special check-in instructions

The front desk is open daily from 7:00 AM - 9:00 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

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
  • A late check-out fee will be charged

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

This property does not have elevators
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

Frequently asked questions

Does Grassy Flats Resort & Beach Club have a pool?

Yes, this property has 2 outdoor pools. Pool access is from 7:00 AM–10:00 PM.

Is Grassy Flats Resort & Beach Club pet-friendly?

Yes, this property allows dogs with a maximum weight of up to 30 lbs per pet. There's a fee of USD 50 per accommodation, per night. Service animals are exempt from fees.

How much is parking at Grassy Flats Resort & Beach Club?

Self parking is free at this property.

What time is check-in at Grassy Flats Resort & Beach Club?

Check-in start time: 3:00 PM; Check-in end time: 9:00 PM. Late check-in is available during limited hours.

What time is check-out at Grassy Flats Resort & Beach Club?

Check-out is at 11:00 AM. Late check-out is available for a fee.

Where is Grassy Flats Resort & Beach Club located?

Nestled on the beach, this Marathon hotel is within 1 mi (2 km) of Coco Plum Beach and Curry Hammock State Park.

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Grassy Flats Resort & Beach Club Reviews

Reviews

9.4

Exceptional

Rating 10 - Excellent. 237 out of 299 reviews
Rating 8 - Good. 34 out of 299 reviews
Rating 6 - Okay. 20 out of 299 reviews
Rating 4 - Poor. 4 out of 299 reviews
Rating 2 - Terrible. 4 out of 299 reviews

9.6/10

Cleanliness

9.6/10

Staff & service

8.8/10

Amenities

9.4/10

Property conditions & facilities

9.4/10

Eco-friendliness

Reviews

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

Falinda

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

10/10 Excellent

Robyn

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Wonderful place to stay!!
Stayed 7 nights in Apr 2025

10/10 Excellent

Sonja L

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

Todd

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

10/10 Excellent

Julie

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

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

Carmen

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

Matt

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
very nice resort with good food, drinks and surroundings
Stayed 2 nights in Feb 2025

10/10 Excellent

Lori

Liked: Amenities
Beautiful property and the staff was so friendly and helpful!
Stayed 3 nights in Mar 2025

10/10 Excellent

Bobbi

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

barry

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful location and plenty of thought put in to comfort. Only stayed one night but wished I'd booked more.
Stayed 1 night in Apr 2025

10/10 Excellent

Luciano

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent hotel!!
Stayed 1 night in Jan 2025

10/10 Excellent

Kelly

Liked: Cleanliness, staff & service, property conditions & facilities
Very peaceful and the views were incredible.
Stayed 4 nights in Feb 2025

10/10 Excellent

Warren S

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Wonderful staff and property!
Stayed 1 night in Jan 2025

8/10 Good

Alisha

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

Fred

Liked: Cleanliness, staff & service, property conditions & facilities
A hidden gem one of the most authentic keys hotels we have stayed at.
Stayed 2 nights in Feb 2025

10/10 Excellent

Tatiana

Liked: Cleanliness, staff & service, property conditions & facilities
Must stay hidden gem!
Stayed 1 night in Apr 2025

10/10 Excellent

Cindy

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

Leslie

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

Room with a view

Loved our stay. The room was adorable, clean, comfortable & convenient. We had the best view from our awesome deck. Best sunrises
Stayed 3 nights in Mar 2025

10/10 Excellent

Vinny

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
beautiful rooms
Stayed 1 night in Mar 2025

10/10 Excellent

Stephanie

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

Great family vaca!

What a great stay we had! Our first time in the keys and it was fantastic! We booked 2 nights initially but after spending time at the tiki bar with Jeff while waiting for our room and watching the kite surfers, we booked a 3rd night. The front desk staff was very accommodating and kind and Joe the tiki bar bartender made great tropical drinks and played incredible music. We are already plotting our next vacation here!
Stayed 2 nights in Apr 2025

8/10 Good

Nadja

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The resort was beautiful. We added the Romance Package and it was absolutely perfect. The room was spacious and clean and the ocean view was wonderful. The adults-only pool made our trip even more enjoyable.
Stayed 2 nights in Mar 2025

10/10 Excellent

Julie

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We would highly recommend staying at Grassy Flats. Our room was very clean, beautiful views. Tiki bar service was fast and friendly!
Stayed 2 nights in Feb 2025

10/10 Excellent

Zachary

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We LOVE Grassy Flats! This is our second time staying here and we will be back again!! Grassy flats has everything you want from a large resort such as dining options, water sports, multiple pools, a convenience market but with the laid back, quiet and quaint small beach resort vibes.
Stayed 4 nights in Mar 2025