Very Good 1588 Reviews
Jetsetter Approved
This Hotel meets our standards
This hotel meets our standards, but we haven't stayed yet


  •  Bar
  •  Free WiFi
  •  Gym
  •  Handicap-accessible
  •  Parking On Site
  •  Pet-friendly
  •  Pool
  •  Restaurant
  •  Spa
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With a stay at Wentworth by the Sea, A Marriott Hotel & Spa in New Castle, you’ll be convenient to Wentworth by the Sea Golf Club and Fort Constitution Historical Site. This romantic hotel is within close proximity of Fort Stark State Historic Site and Odiorne Point State Park.


Make yourself at home in one of the 161 air-conditioned rooms featuring minibars and flat-screen televisions. Complimentary wired and wireless Internet access keeps you connected, and cable programming provides entertainment. Private bathrooms have complimentary toiletries and hair dryers. Conveniences include phones, as well as safes and desks.

Spa, Wellness & Premium Amenities

Relax at the full-service spa, where you can enjoy massages, body treatments, and facials. You’re sure to appreciate the recreational amenities, including a health club, an outdoor pool, and an indoor pool. Additional amenities at this hotel include complimentary wireless Internet access, concierge services, and gift shops/newsstands.

Food & Drink

Satisfy your appetite at the hotel’s restaurant, which serves breakfast, lunch, and dinner, or stay in and take advantage of room service (during limited hours). Relax with your favorite drink at a bar/lounge or a poolside bar.

Business & Travel Amenities

Featured amenities include complimentary wired Internet access, a business center, and complimentary newspapers in the lobby. Planning an event in New Castle? This hotel has 8387 square feet (755 square meters) of space consisting of conference space and meeting rooms. Free self parking is available onsite.

How to Get There

Wentworth by the Sea, A Marriott Hotel & Spa
588 Wentworth Rd
New Castle, NH 03854 United States


4.5 Very Good 1588 Reviews
Overnight trip
Reviewed 14 hours ago

Had a wonderful corner room on 3rd floor with a small balcony overlooking the back waterway. Room was big and comfortable, loved the heated bathroom tiles, and beds were great. Staff was friendly and helpful. Didn't get to spend too much time there, but will definitely come back.

anniversary visit
Reviewed 19 hours ago

stayed for 4 days in early June. Lovely place, very charming, generally good service. It was in season , however, and concierge lounge was only open on the last day. Otherwise it was empty---no water , nothing. and no notice about when it would be open. also, although we made sure to put on the reservation that it was our anniversary, and we told them at check in---nothing---not so much as a happy anniversary. Very surprising. the hilton garden inn in Portland gave us a card---thoughtful, nice and didnt cost them much at all.also, one and only pool closed on a hot day---at least they made a small accomodation allowing us in to a private pool

A Lovely Historical Hotel
Reviewed 1 day ago

We enjoyed our stay here in June. The hotel and grounds were very well kept and the view of the water was lovely. We really enjoyed the breakfast - it was delicious! Sitting on the porch while dining was an added bonus!

Wish we could have stayed longer
Reviewed 1 day ago

Majestic hotel that we found to be top notch. Only stayed 1 day on our way home from vacation, but we wished we had more time to enjoy the amenities and the area. Plenty of help to greet and service us as we checked in. Everyone was friendly and helpful. We ate lunch at the restaurant under the pool and found it first class, with fresh and innovative fair. The outdoor pool is great, with a harbor view and pool bar. Room was comfortable and we slept well. Next time we will stay longer.

Beautiful with some exceptions
Reviewed 2 days ago

Beautiful property with immaculate landscaping and great breakfast and dinner service at SALT restaurant. Awesome pool area.

Frustrated by some service things- I am a Gold Elite member who is entitled to guaranteed late check out at 4PM. I requested it while booking and at check in. Was told that this hotel is “not actually a Marriott property, just managed by Marriott” and they don’t participate in this. They gave me one extended hour and keys that still worked for the pool which was okay. To any guest staying here this is a Marriott property and we do not care about the specifics in that. Everything says Marriott and no where did it say this hotel is excluded in the fine print of Gold Elite benefits.

Also, at the pool they have “16 oz aluminum bottle beers” advertised yet they are serving 12oz cans for the exact same price. The waitress said she gets a lot of complaints about this but the manager isn’t doing anything. We noticed but how many customers were tricked by this? They are charging the exact same price for 4oz less and this is incredibly deceitful.

Overall satisfied but unhappy with the $$ you pay for the property and expect better service than this.