Wentworth by the Sea, A Marriott Hotel & Spa

New Castle, NH Hotel
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ChainMarriott International Hotels
Marriott Hotels
Total Meeting Space1,000 sq. m
Guest Rooms161
588 Wentworth Rd.
New Castle, NH 03854

Wentworth by the Sea, A Marriott Hotel & Spa

New Castle, NH Hotel
Learn how the Cvent Supplier Network works

Need Dates

  • 07/22/201807/26/2018
  • 07/29/201808/01/2018
  • 08/12/201808/16/2018




Conde Nast Traveler- #5 Top Resort in New England, 2016; #4 Best Hotel Spa in US, #10 of Top 25 Hotels in New England 2015, 2014. Gold List Top 100 Hotels in the US 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2009 Conde Nast Readers Choice - 2012, 2014 Travel + Leisure "Best Hotels in the World" 2014, 2013, 2011 New Hampshire Magazine "Best of NH: Hotel/Resort/Spa" 2017 Meetings & Conventions, Gold Key Award 2016 Marriott Hotel of the Year 2006 Marriott Operation of the Year 2007 Meetings East- Best of the East 2009 & 2010 Fodor's Choice Award 2010


Room Features and Guest Services

  • Calls (Local)
  • Calls (Toll-Free)
  • Concierge Services
  • Laundry Service
  • Room Service
  • View (Ocean or Water)
  • Voicemail Box


  • Onsite Catering
  • Onsite Gift Shop
  • Onsite Restaurant
  • Onsite Security
  • Pet Friendly
  • Rental Car Service
  • Space (Outdoor)
  • Space (Private)
  • Wheelchair Accessible


  • AV Capabilities
  • Business Center
  • Video Conference
  • VIP Services

Recreational Activities

  • Health Club
  • Indoor Pool
  • Outdoor Pool
  • Skiing
  • Spa or Salon
  • Tennis Courts
  • Water Sports
  • Whirlpool

Venue Accessible By

  • Taxi


  • Dance Floor
  • Loading Dock
  • Piano
  • Staging Area

Image Gallery


Meeting Space

Total Meeting Space1,000 sq. m
Meeting Rooms12
Largest Room348 sq. m
Second Largest Room241 sq. m
Space (Private)929 sq. m
Space (Outdoor)74 sq. m
Exhibit Space300 sq. m

Floor Plans

Guest Rooms

Total Guest Rooms161
Singles (1 Bed)72
Doubles (2 Beds)59
Tax Rate9%


Local Attractions

Portsmouth Kayak Adventure

1 mi. away
Team Building Tour 2.5 hours Let our enthusiastic staff lead your group on an exciting team building kayak tour. Not only will your group enjoy an exhilarating day on some of New Hampshire's most beautiful waters, but our challenges and team building activities will give your organization newfound cohesion and many memorable laughs. Standard Corporate Kayak Tour Standard Corporate Tour 2.5 hours Enjoy a relaxing day on the water with our knowledgeable and friendly staff while learning about the rich natural and cultural history of New Hampshire's seacoast. Establish a different dynamic with co-workers by taking your staff out of the work place.

Strawbery Banke

3 mi. away
Strawbery Banke Museum, in the heart of historic downtown Portsmouth, New Hampshire, is an authentic 10-acre outdoor history museum, listed on the National Register of Historic Places and dedicated to bringing 300+ years of American history to life. Strawbery Banke is a place to have fun learning about architecture, heritage plants and foodways, traditional crafts and the tools, clothing and collections families used for everyday life in this waterfront neighborhood, 1695 through 1954 when the site was saved from urban renewal. Explore heritage gardens, historic buildings and crafts, preservation programs, hands-on activities, the stories told by costumed role-players, traditional crafts and the changing exhibits that offer hours of fun and discovery.

Seacoast Science Center

8 minutes away
Thank you for your interest in learning about the Seacoast Science Center, a non-profit marine science education organization located on the New Hampshire coast. Since 1992 the Center's programs and exhibits have informed people, from toddlers to grandparents, about why a healthy ocean is important. Our Mission Ocean education is what we do. We educate to motivate. We want everyone to recognize and understand that what we do every day has an impact on the health of the ocean and that ocean health impacts our daily lives. A healthy ocean drives our quality of life today and will for future generations.

Isles of Shoals Steamship Company

4 mi. away
The Isles of Shoals Steamship Company has been operating for over 25 years cruising the Piscataqua River and Isles of Shoals. We offer a variety of cruises to suit nearly everyone. Whether it be with family, friends, co-workers, students or hosting a special celebration, our crew looks forward to welcoming you aboard. Come cruise with us and take in the breathtaking NH seacoast. The M/V (motor vessel) Thomas Laighton was named for a famous “Shoaler”, politician and businessman. As keeper of the Isles of Shoals Lighthouse with his family on White Island, Thomas Laighton later founded the Appledore House Hotel. This began the resort era of the Isles of Shoals and NH seacoast in the mid 19th century. The M/V Thomas Laighton is a 90’ vessel with three decks which is certified to carry up to 340 passengers. There are two enclosed cabins and an open air sundeck. We carry up to 150 guests for a seated dinner and up to 275 guests for a cocktail style cruise. We limit sightseeing cruises to 275 guests as well for comfort. The Thomas Laighton features three full bars, one on each level. It is US Coast Guard certified and inspected and operated by licensed and experienced captains and a friendly crew. The vessel is handicap accessible.

Portsmouth Harbor Cruises

3 mi. away
Harbor Cruise On our fully narrated Harbor Cruise we’ll take you through nearly 400 years of local and American history, from the settlement of the region in 1623 to Portsmouth Harbor’s modern day role in the economy and defense of our country. Isles of Shoals Cruise If the open sea is your desire, join us for the Isles of Shoals cruise. Leave Portsmouth Harbor and discover the nine legendary islands located six miles off the coast. Evening, Sunset & Lights Cruises As a relaxing end to a busy day or to begin a night on the town, come aboard the Heritage for a jaunt around the Harbor. Relax with your favorite cocktail and enjoy the nighttime sights of the Seacoast. Inland River Cruises Our Inland River Cruises are the Seacoast’s most popular Fall Foliage Cruises. Come aboard this fall for a unique cruise into some of the most picturesque scenery on the Seacoast. Wine Cruise Join us for a 1.5 hour Sunset Cruise aboard the M/V Heritage with Carla Snow, CSW as your wine hostess. We will sip and savor 5 unique wines as we nibble on cheese and crackers. Planning a party or function? Consider a private charter aboard the 49 passenger MV Heritage. From small gatherings to large functions, we can help make your event memorable and easy to plan. A Heritage charter is ideal for: Family Reunions Company Outings Field Trips Cocktail Parties Wine Tastings Weddings Rehearsal Dinners Surprise Birthday Parties Consider the boat exclusively yours! Charters aboard the Heritage are left to your design. Customize your event with our on-premise services. We offer: Full bar service, snack bar and/or catering by one of our experienced catering companies Narration or music sound system with CD player – Ipod compatible. Cruises of Portsmouth Harbor, Isles of Shoals, Great Bay, Cocheco River and special request cruises

The Seacoast Repertory Theatre

4 mi. away
Seacoast Repertory Theatre, a professional non-profit theater, is committed to contributing to the cultural richness of the Seacoast region through the shared experience of live theatre and the collaboration with community arts organizations. Our inclusive programs are created to empower and inspire the imaginations of each and every member of our community.

Portsmouth Downtown-Market Square

4 mi. away
It's hard to imagine a typical day of leisure in the Seacoast. So here's some help--nationally acclaimed theatre and music, biking, hiking, fishing, sailing, whale watching, bird watching, sunset cruises, tax-free shopping, walking tours, historic sites, antiquing, hayrides, sleigh rides, big name entertainment, museums, New England's largest water park, strolls along the shore, first-class dining and friendly people. It's no wonder that more and more people are discovering the Seacoast of New Hampshire and southern Maine as a vacation destination and a great place to live.

Portsmouth Music Hall

3 mi. away
The Music Hall is a performing arts center featuring curated entertainment from around the world in two theaters in its downtown Portsmouth, New Hampshire campus - one, a landmark 1878 Victorian theater, designated an American Treasure for the Arts by the US Senate, the other the intimate Music Hall Loft around the corner, recently named “best performing arts venue” by Yankee Magazine and the recipient of the NH AIA award for design excellence. Acclaimed signature series bring top authors and artists to both stages, while HD broadcasts and independent film fill both screens. A radio show broadcast on NH Public Radio originates here. This dynamic arts center urges patrons to Explore + Learn via master classes, post film panel discussions, and matinees for children. An anchor cultural organization in this historic working seaport, The Music Hall is one of downtown Portsmouth’s biggest employers and largest contributors to the regional economy: The Music Hall and its patrons contribute $7 million annually to the local economy through show and visitor related spending. Innovative in its outlook, the organization is community oriented and committed to making the Seacoast flourish. The Music Hall is 501c3 nonprofit managed by a professional staff with the assistance of a volunteer board. Though global in the scope of its artists and programs, The Music Hall operates independently with the support of 3,000 members, 300 business supporters and 58 community partners. Welcoming more than 100,000 patrons (including 20,000 children) each year from the tri-state area and beyond, The Music Hall is the region’s center for the performing arts, literature and education…easy to get to, impossible to forget.

Distance from Airport

  • 72.42 km from Venue


  • Complimentary Parking
  • Valet Parking$5.00 / day
  • Bus Parking


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.

Cancellation Policy

72 Hours


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