1000 Islands Top Attractions

Boldt Castle

Heart Island,
Alexandria Bay, NY 13607

Early May to Mid October

Times vary.
10am-6:30pm June-Sept

$8.50 adults, $6 children


Six-story, 120-room Rhineland-style castle built on an island at the turn of the century by Gilded Age hotel proprietory George Boldt, famed operated or the Waldorf-Astoria in New York City. Castle was never finished; Mrs. Louise Boldt died before completion and broken-hearted Mr. Boldt abandoned the project. Today, refurbished for daily self-guided touring.

Antique Boat Museum

750 Mary Street, Clayton, NY 13624

Mid-May to Mid-Dec, Daily

Times vary. 9am-5pm summer

Admission prices vary. In-season, $13 adults


Museum featuring the largest collection of antique and classic boats on display in North America. Visitors learn about boating history, can row a skiff in French Bay, tour a 100-year-old two-story houseboat and ride in an antique speedboat.

Sackets Harbor Battlefield State Historic Site

504 W. Main Street, Sackets Harbor, NY 13685


Stationed on the Lake Ontario shoreline and site of two battles during the War of 1812. Tour the furnished Commandant’s House and Navy Yard grounds. Interpretive trail open year-round. Demonstrations in summer.

Rock Island Lighthouse

Fishers Landing, NY 13641

Open May-Oct at daylight

$3 adults


Fifty-foot lighthouse, keeper’s dwelling and boathouse on small island. Visitors can tour the keeper’s house and the lighthouse, including the lantern room.

Uncle Sam Boat Tours

45 James Street, Alexandria Bay, NY 13607

May 1-Oct 31

Times vary


Offering a variety of tours through the 1000 Islands including lunch and dinner cruises and stops to Boldt and Singer castles.

Clayton Island Tours

Chauteau Lane



Prices vary


Touring the 1000 Islands including stops to Rock Island Lighthouse, Boldt Castle and more. Touring both sides of the border and departing from Clayton and Wellesley Island.

Thousand Islands-Seaway Wine Trail

Jefferson County, NY


Hours and prices vary

Eight wineries and vineyards scattered along the St. Lawrence River and Lake Ontario specializing in wines made from cold hardy grapes that withstand the region’s cold winters. Tastings, festivals and more.

Wellesley Island State Park

44927 Cross Island Rd, Wellesley Island, NY 13640


Hours and prices vary


Largest state park in the region with more than 100 campsites, year-round cabins, cottages, beach, marina, recreation facilities and more. On-site nature center open year-round with more than eight miles of trails.

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