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Thames Inn & Marina

Thames Inn & Marina allows pets of any size for an additional 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
    Room details
    1 Queen Bed

    Internet - Free WiFi

    Food & Drink - Kitchen with refrigerator, microwave, dishwasher, and cookware/dishware

    Sleep - Bed sheets

    Bathroom - Private bathroom, towels, and a shower/tub combination

    Practical - Iron/ironing board

    Comfort - Air conditioning and daily housekeeping


    Room is accessed via exterior corridors

    Room Amenities

    • Towels provided
    • Bedsheets provided
    • Non-Smoking
    • Shower/tub combination
    • Private bathroom
    • Refrigerator
    • Daily housekeeping
    • Air conditioning
    • Free WiFi
    • Iron/ironing board
    • Cable/satellite TV service
    • Access via exterior corridors
    • Dishwasher
    • Kitchen
    • Cookware, dishware, and utensils
    • Microwave
    • Internet access (complimentary)
    • High-speed internet access
    • Free local calls
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
  • Free Parking
  • Laundry Room
  • Non-Smoking Property
  • Outdoor Grills
  • Picnic Tables


BringFido Guest Rating
TripAdvisor Traveler Rating

Thames Inn & Marina has received a rating of 4.5 out of 5 bones by 10 canine critics on BringFido and 3.5 out of 5 by 54 guests on TripAdvisor.

Visitors generally found the Thames Inn & Marina to be a pet-friendly and accommodating establishment, with clean rooms, friendly staff, and stunning waterfront views. They noted that while the property is somewhat dated, it offers good value and makes for a great dog-friendly getaway.

AI-generated from the text of reviews

  • Rudy
    Oct 19, 2023
    Dog friendly

    The staff is very nice and very accommodating. Nice location right on the river. The room was a little dated but very clean. A great place to stay with your pet in the Mystic area close to downtown and the marina. A+.

  • Becky
    Aug 12, 2023
    Wonderful view

    The Thames Inn was a good place to bring our Lab, but not if you’re looking for luxury. It was clean enough and the sunset view across the river to New London was terrific. I wouldn’t recommend it for people without dogs, but the price was great, the people were nice, and the location was excellent. There’s a good pasta restaurant half a block away with excellent takeout service.

    Oct 3, 2022

    Booked at last minute. Needed overnight accommodations with our pup on way home from Maine.
    Inn is dated, but clean, and manager was very friendly. If you’re looking for an overnight stay that you don’t need to pay an arm and a leg, this is a no-frills clean place to stay.

  • 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