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Blackfin Resort and Marina

Blackfin Resort and Marina allows pets up to 110 lbs for an additional fee of $5 per pet, per night. Both dogs and cats are welcome, but guests traveling with cats must contact the hotel prior to check in. Four-legged guests may be left in rooms unattended, but housekeeping will not service the rooms while pets are alone. There are small grassy pet relief areas on the property.
Or, browse all pet friendly hotels in Marathon if you’re still looking.

Room Types
Please Select a Room

    • 1 queen bed
    • Up to 2 people
    • 2 queen beds
    • Up to 4 people
    • 1 queen bed
    • Up to 2 people
OUR GUARANTEE: Book a room now! Our canine concierge will make sure you’re assigned a pet-friendly room, so there aren’t any surprises at check-in.


You'll be centrally located in Marathon with a stay at Blackfin Resort and Marina, minutes from Marathon Garden Club and Sombrero Beach. This hotel is within close proximity of Crane Point Museum and Nature Center and The Turtle Hospital. Make yourself at home in one of the 40 air-conditioned guestrooms. Your room comes with a pillowtop bed. Complimentary wireless Internet access keeps you connected, and cable programming is available for your entertainment. Private bathrooms with showers feature complimentary toiletries and hair dryers. Relax on the private beach or enjoy other recreational amenities such as a nightclub and an outdoor pool. Additional features at this hotel include complimentary wireless Internet access, gift shops/newsstands, and wedding services. Satisfy your appetite at the hotel's restaurant, which serves lunch and dinner, or stay in and take advantage of room service (during limited hours). Quench your thirst with your favorite drink at a bar/lounge. Featured amenities include complimentary newspapers in the lobby, laundry facilities, and a safe deposit box at the front desk. Free self parking is available onsite.

Health & Safety

Safe Stay: Blackfin Resort and Marina has enhanced cleaning and safety measures in place. Hand sanitizer is provided to guests, and rooms are disinfected between each stay and sealed after cleaning. Social distancing measures are in place, as well as physical barriers between staff and guests. Contactless check-in and check-out are available. Each room has a 24-hour gap period between stays, and hotel staff are required to wear masks.


  • Television
  • Pet Friendly
  • Internet Available
  • Free WiFi
  • Family Rooms
  • Air Conditioning
  • Room Service
  • Parking Available
  • Free Parking
  • RV / Trailer Parking
  • Wheelchair Accessible
  • Laundry Room
  • Outdoor Grills
  • Picnic Tables


BringFido Guest Rating
TripAdvisor Traveler Rating

Blackfin Resort and Marina has received a rating of 5.0 out of 5 bones by 5 canine critics on BringFido and 4.0 out of 5 in 381 guests on TripAdvisor.

  • Laurel
    Jun. 20, 2021
    Great location!

    Loved this resort which felt very original FL Keys style. Sat down by the water with my dog and thoroughly enjoyed the afternoon.

  • Catharine
    Jan. 13, 2021
    Great time

    The place was nice, took dogs to city dog park and walked around the area without problems. Room was nice for the dogs.

  • Danielle
    Oct. 24, 2020
    Great location & friendly staff

    The room was very clean and comfortable. The staff were super friendly and accommodating to us and our three dogs. There isn’t a ton of space on property to walk the dogs but it is nice to go down to the marina and little beach. Anything we needed, they gave with a smile.

    The price was reasonable and it’s in a good location in Marathon.

  • Jenny
    Jan. 25, 2020
    Best Pet Fee in KeyWest

    Thankful this pleasant resort is so dog gone great about allowing dogs. We were turned off by KW prices ESPECIALLY w/ dog fees included. We were pleasantly surprised by how low-key pleasant Blackfin was. There were lots of little places to walk ShadowRae w/ o being anywhere NEAR the highway. Rooms were clean, spacious, internet worked...would have been worth staying a second night.

  • Becki on Jul. 9, 2021
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Traveler Photos

We dug up a dog picture at Blackfin Resort and Marina.

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Book with Confidence

  • This hotel’s pet policy has been confirmed by our editors and your reservations will be backed by our no-hassle .
  • Our Canine Concierge will make sure you’re assigned to a pet friendly room, so there won’t be any unpleasant surprises at check-in.
  • And you’re getting a great low rate too! We never charge a booking fee on top of the special negotiated nightly rate.
Blackfin Resort and Marina