Skip Main Navigation

Wentworth by the Sea, A Marriott Hotel & Spa

588 Wentworth Rd.  New Castle  New Hampshire  03854  USA 

Check Rates & Availability

(proof of eligibility required at check-in)

About special rates

Get our best available rate, guaranteed, or get 25% off!

See brand exclusions and guarantee terms.

To make reservations by phone, call 1-800-228-9290 in the USA and Canada (or any of our worldwide reservation telephone numbers).

Get our best available rate, guaranteed, or get 25% off!

See brand exclusions and guarantee terms.

You won't regret staying at our luxury New Castle hotel

Wentworth By the Sea, A Marriott Hotel & Spa commands the island of New Castle, one of New Hampshire's oldest settlements. Masterfully blending historic elegance with 21st century convenience, our luxury hotel provides a memorable backdrop for business conferences, family vacations, and romantic getaways. The Wentworth features 161 elegant rooms and suites, brimming with luxury perks; many showcase ocean views. Intimate restaurants with imaginative cuisine, pampering spa services, indoor and outdoor pools, fitness and business centers, and wireless Internet are all yours to enjoy during your stay here in New Castle. If you're hosting an event in the Portsmouth area, our hotel offers 10,000 square feet of flexible space and expert planning services. And there is no shortage of wonderful things to do here in New Castle and the surrounding area - from visiting Water Country to exploring historic downtown Portsmouth. A grand resort experience is yours to enjoy at Wentworth by the Sea, A Marriott Hotel & Spa.

Key Amenities

  • Full Service Spa
  • Fitness center
  • Pool
  • Kitchen/kitchenette

Map & Local Area

Marriott Rewards

Category:9· Points Needed Per Night

Highlights

  • We're the winners of Marriott's Hotel of the Year and TripAdvisor's Certificate of Excellence, as well as a TripAdvisor GreenLeaders program member.
  • Indulge in a luxury spa day during your New Castle vacation. Located here at the hotel, the Spa at the Wentworth features a wide range of treatments.
  • SALT Kitchen & Bar, our newly reimagined dining experience, delivers bold New England flavors in a contemporary and relaxing restaurant environment.

  • Close
    Guest room
    1 King or 2 Double
    Guest room
    1 King or 2 Double

    Room images may not correspond to the actual room received.

        Check Room Rates & Availability

      View Room Details

      Room Overview
      Room Amenities
      In-room Media
    • Close
      Guest room
      1 King or 2 Double, Harbor view
      Photo coming soon
      Guest room
      1 King or 2 Double, Harbor view

      Room images may not correspond to the actual room received.

        Check Room Rates & Availability

      View Room Details

      Room Overview
      Room Amenities
      In-room Media
    • Close
      1 Bedroom Suite
      1 King, Sofa bed, Fireplace
      1 Bedroom Suite
      1 King, Sofa bed, Fireplace

      Room images may not correspond to the actual room received.

          Check Room Rates & Availability

        View Room Details

        Room Overview
        Room Amenities
        In-room Media
      • Close
        1 Bedroom Suite
        1 King, Sofa bed, Harbor view, Fireplace
        Photo coming soon
        1 Bedroom Suite
        1 King, Sofa bed, Harbor view, Fireplace

        Room images may not correspond to the actual room received.

          Check Room Rates & Availability

        View Room Details

        Room Overview
        Room Amenities
        In-room Media
      • Close
        West Turret Suite
        1 Bedroom Bi-level Suite, 1 King, Harbor view
        Photo coming soon
        West Turret Suite
        1 Bedroom Bi-level Suite, 1 King, Harbor view

        Room images may not correspond to the actual room received.

          Check Room Rates & Availability

        View Room Details

        Room Overview
        Room Amenities
        In-room Media
      • Close
        East Turret Suite
        1 Bedroom Bi-level Suite, 1 King, Harbor view, Fireplace, Whirlpool
        Photo coming soon
        East Turret Suite
        1 Bedroom Bi-level Suite, 1 King, Harbor view, Fireplace, Whirlpool

        Room images may not correspond to the actual room received.

          Check Room Rates & Availability

        View Room Details

        Room Overview
        Room Amenities
        In-room Media
      • Close
        Center Turret
        1 Bedroom Presidential Suite, 1 King, Harbor view
        Photo coming soon
        Center Turret
        1 Bedroom Presidential Suite, 1 King, Harbor view

        Room images may not correspond to the actual room received.

          Check Room Rates & Availability

        View Room Details

        Room Overview
        Room Amenities
        In-room Media
      • Close
        Marina Suite
        1 Bedroom Villa, 1 King, Sofa bed, Bathrooms: 1.5, Waterfront, Marina Building
        Marina Suite
        1 Bedroom Villa, 1 King, Sofa bed, Bathrooms: 1.5, Waterfront, Marina Building

        Room images may not correspond to the actual room received.

            Check Room Rates & Availability

          View Room Details

          Room Overview
          Room Amenities
          In-room Media
        • Close
          Marina Suite
          2 Bedroom Villa, Bedroom 1: 1 King, Bedroom 2: 1 King, Bathrooms: 2, Waterfront
          Photo coming soon
          Marina Suite
          2 Bedroom Villa, Bedroom 1: 1 King, Bedroom 2: 1 King, Bathrooms: 2, Waterfront

          Room images may not correspond to the actual room received.

            Check Room Rates & Availability

          View Room Details

          Room Overview
          Room Amenities
          In-room Media
        • Close
          Marina Suite
          2 Bedroom Villa, Bedroom 1: 1 King, Bedroom 2: 2 Double, Sofa bed, Bathrooms: 2
          Marina Suite
          2 Bedroom Villa, Bedroom 1: 1 King, Bedroom 2: 2 Double, Sofa bed, Bathrooms: 2

          Room images may not correspond to the actual room received.

              Check Room Rates & Availability

            View Room Details

            Room Overview
            Room Amenities
            In-room Media
          Show all (3 of 10 shown) show fewer

          Check Room Rates & Availability