Welcome to Wentworth by the Sea, A Marriott Hotel & Spa

Explore the Seacoast, from our hotel near Portsmouth, NH

On-Site Outlets
Spa - Asientos

The Spa at the Wentworth

New Castle Island's serenity and scenic beauty inspired our New Hampshire luxury spa, designed to enhance your wellbeing. Capture delight in self-care and tranquility at one of the top spas in New Castle, NH.

Fitness Center

Fitness Center

Spike your heart rate in our 24/7 New Castle, NH hotel fitness center, with free weights & cardio.

Indoor Pool


Indoor Pool

Mon-Sun: 7:00 AM-11:00 PM


Towels provided


Outdoor Pool


Towels provided



two outdoors and one inside

Towels provided at whirlpool

Nearby Things To Do

Seacoast Science Center

3.8 Miles

Discover and connect with nature at the Seacoast Science Center, a science center home to fish, mammals, touch tanks, and an exciting Discovery Dock for kids, 3.5 miles from our hotel near downtown Portsmouth.

Water Country

4 Miles

Water Country – New England's largest, cleanest, safest, and friendliest waterpark near our luxury resort in New Hampshire, with 26 acres of waterslides, wave pools, and other attractions.

Children's Museum of New Hampshire

14.7 Miles

Embrace your inner kid on your near our New Castle, NH hotel at the Children's Museum of New Hampshire, an educational center exploring art, science, and culture via interactive exhibits for kids & families.

York's Wild Kingdom

16.8 Miles

Explore York's Wild Kingdom from one of the most convenient hotels near Portsmouth, NH, a small, family-oriented zoo and amusement park featuring a Ferris wheel, bumper cars, and more.

Wentworth By The Sea Country Club

0.7 Miles

A Private Club, not affliated with our New Castle, NH hotel

Wentworth By The Sea Country Club

18 holes , 6306 yards , Par for course: 72
Pease Golf Course

5.5 Miles

A popular 27-hole golf course, located just minutes from our hotel near Portsmouth, NH.

Pease Golf Course

18 holes , 6402 yards , Par for course: 72
Breakfast Hill Golf Course

7.1 Miles

With a par-71 layout and a premium design, it's no wonder that Breakfast Hill was voted one of the best golf courses in New Hampshire.

Breakfast Hill Golf Course

18 holes , 6543 yards , Par for course: 72
Ledges Golf course

13.3 Miles

One of the best public golf course experiences near our hotel near Portsmouth, NH.

Ledges Golf course

18 holes , 3495 yards , Par for course: 72


Ski Lockers

Wallis Sands State Beach, Jenness Beach, Hampton Beach

1 Miles

Jenness State Beach

1 Miles

North Hampton State Beach

3 Miles

More Activities and Local Partners