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Thames Inn & Marina

Thames Inn & Marina allows pets of any size for a fee of $20 per pet, per night.
Or, browse all pet friendly hotels in Groton if you’re still looking.

Room Types
Please Select a Room

    • 1 queen bed
    • Up to 2 people
    • Pet fee additional
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.


With a stay at Thames Inn & Marina in Groton, you'll be convenient to Fort Griswold Battlefield State Park and United States Coast Guard Academy. This hotel is within close proximity of New London Ferry Dock and Nathan Hale Schoolhouse. Make yourself at home in one of the 32 air-conditioned rooms featuring kitchens with refrigerators and microwaves. Conveniences include coffee/tea makers and irons/ironing boards, and housekeeping is provided daily. Make use of convenient amenities, which include a picnic area and barbecue grills. Featured amenities include laundry facilities and coffee/tea in a common area. Free self parking is available onsite.


  • Pet Friendly
  • Internet Available
  • Free WiFi
  • Kitchen / Kitchenette
  • Air Conditioning
  • Parking Available
  • Free Parking
  • Exterior Rooms
  • Laundry Room
  • Outdoor Grills
  • Picnic Tables


BringFido Guest Rating
TripAdvisor Traveler Rating

Thames Inn & Marina has received a rating of 4.6 out of 5 bones by 7 canine critics on BringFido and 3.5 out of 5 by 54 guests on TripAdvisor.

  • Marcia
    Sep. 20, 2022
    On the water

    This is an old school mom-and-pop motel. The room was sparkling clean, with fresh flowers! Very warm friendly staff too.

  • Devon
    Aug. 29, 2022
    Thames River Inn

    Dogs are invited and love it here. We stayed at Thames River Inn Groton Ct 8/29/22. Wayne couldn’t have been nicer. Very clean. Great big tv. Great value. Not your typical chain motel but it’s nice to give a small business our support. 5 bones.

  • David
    Jun. 15, 2022
    Nice and quiet

    Place is old and outdated, but very clean and friendly. Staff was wonderful and our dogs enjoyed it.

  • John
    Apr. 11, 2022
    Good location, clean

    Very dog friendly hotel in a nice location with fantastic water and sunset views across to New London. The place is a bit weathered and needs some maintenance and repairs but was clean and comfortable. The guy who checked us in was friendly and nice. We would stay there again.

  • Rochelle
    Jun. 25, 2021
    Wayne is extremely accommodating and friendly

    Great little place with beautiful views. Clean rooms that have been recently renovated. We only stayed a night; we were just going to a show at casino. But would definitely stay again and longer if situation called for it. Wayne is awesome. Thanks for everything!

  • Alyssa
    May. 31, 2021
    Great stay

    Owner was very friendly and made the check-in process a breeze. My dog enjoyed watching the boats on the marina. Suites were spacious, but the kitchen did not have basic essentials apart from some pots and pans, so bring your own cups and utensils!

  • Kerrine
    Oct. 16, 2019
    Dog loving facility

    This place was very accommodating to our 90lb German shepherd. Everyone loved him. The owner/manager was delighted by him and let him in the office like he was another guest. There were several other dogs there as well. It is hard to find lodging for large dogs. We will definitely be going back here again.

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Traveler Photos

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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.
Thames Inn & Marina