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A Storied New Hampshire Resort on the Seacoast

An Opal Collection Resort

New Castle, New Hampshire

Relaxing shades of cream and blue welcome guests to tranquil rooms and suites

Each of our thoughtfully designed rooms and suites offers a peaceful escape, complete with inviting furnishings and refined touches. Many feature spa-like bathrooms complete with clawfoot tubs that echo the elegance of a bygone era, and a calming, neutral palette inspired by the surrounding blue waters of New Castle. Select accommodations at our luxury New Hampshire hotel also include private balconies with water views, cozy fireplaces, and extra space ideal for sharing with family and friends.

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#13 Top Resort in New England

Condé Nast Traveler 2024 Readers’ Choice Awards
Historic photo for kids at swimming at Wentworth by the Sea

A grand dame of the Gilded Age continues its legacy

Since 1874, Wentworth by the Sea’s iconic facade and towering turrets have welcomed guests to the island of New Castle near Portsmouth. This 150-year-old New Hampshire resort has famously hosted presidents and dignitaries, and it continues its tradition today as a serene space for weekend getaways, corporate conferences, and celebrations of all kinds.

Holidays & Resort Activities

Wentworth by the Sea Trio Cheers at Salt

From January 1 through December 31, there is always a reason to celebrate with Wentworth by the Sea. New Year’s, Mother’s Day, Thanksgiving, and everything in between, you will find an array of festive menus, sprawling brunches and buffets, and a host of activities to keep all generations entertained.

It’s time to get your holiday plans locked in. Browse our holiday offerings for the upcoming holidays, and catch a sneak peek of what else we have in store. 

Make the most of your Portsmouth getaway with special vacation deals

Check out the local gems that can’t be missed

Mark the moment with a Wentworth by the Sea event

Wentworth by the Sea has a storied reputation as a gathering place, hosting presidents, political figures, and even the visiting dignitaries who signed the Treaty of Portmsouth to end the Russo-Japanese War in 1905. Mark your own moment, big or small, across more than 14,000 square feet of event space for groups of up to 500.