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Wentworth by the Sea

Marriott Wentworth by the Sea welcomes two dogs up to 30 lbs for an additional fee of $150 per stay, plus $20 per night. Dogs may not be left unattended in rooms. There is a grassy pet relief area on the property. Sorry, cats are not permitted.
Or, browse all pet friendly hotels in New Castle if you’re still looking.

Room Types
Please Select a Room

    • 1 king bed
    • Up to 2 people
    • Pet fee additional
    • 1 queen bed
    • Up to 4 people
    • Pet fee additional
    • 1 king bed
    • Up to 2 people
    • Pet fee additional
    • 1 queen bed
    • Up to 4 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.


Wentworth By the Sea commands the island of New Castle, New Hampshire's oldest settlement. This Portsmouth, NH hotel is located just an hour north of Boston with easy access to I-95, Manchester, NH and the Boston airports. Overlooking the Atlantic Ocean, this hotel is the perfect destination for a romantic getaway or family vacation. This Marriott Hotel of the Year features 161 guestrooms and suites that blend historic elegance with 21st century convenience. Host your next Portsmouth meeting in any of the 12 meeting rooms, including the grand Wentworth Ballroom. Cruise along the Atlantic Ocean from the Hampton Beach hotel, take the family to Water Country or explore the historic downtown area. This New Hampshire resort offers intimate restaurants with imaginative cuisine, spa services, indoor and outdoor pools, nearby beaches, fitness and business centers, and wireless internet. An unwavering commitment to service makes the Wentworth Marriott one of the great resort hotels of New Hampshire, New England and the world.

Health & Safety

Safe Stay: Wentworth by the Sea has enhanced cleaning and safety measures in place, and follows the Commitment to Clean (Marriott) cleanliness and sanitization policy. Masks and hand sanitizer are 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. Hotel staff are required to wear masks.


  • Television
  • Pet Friendly
  • Fitness Center
  • Internet Available
  • Free WiFi
  • Business Center
  • Meeting Rooms
  • Family Rooms
  • Air Conditioning
  • Restaurant
  • Room Service
  • Breakfast Available
  • Spa Services
  • Parking Available
  • Free Parking
  • Wheelchair Accessible
  • Dry Cleaning
  • Elevator
  • Non-Smoking Property


BringFido Guest Rating
TripAdvisor Traveler Rating

Wentworth by the Sea has received a rating of 4.0 out of 5 bones by 4 canine critics on BringFido and 4.0 out of 5 by 1,927 guests on TripAdvisor.

  • River
    Aug. 23, 2019

    Pretty pricey, but nice

  • Wade
    Jul. 5, 2019
    Very Dog Friendly!

    Really impressed with how welcoming the Wentworth is to our dog. The restaurant on site (salt) and by the marina (latitudes) both have pet friendly seating areas outside.

  • Gina
    Jul. 3, 2018
    Great week

    We took our pup for a 5 night stay and it was great! They charged a non refundable fee of $75 per stay.

    The resort is super dog friendly, they even allowed her at the pool with us! The restaurant has a pet friendly section and everyone was so sweet with her.

  • Marianne on Jul. 16, 2022
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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.
Wentworth by the Sea