Thousand Islands · Best Attractions · Curated · Updated 2026

Best Attractions in Thousand Islands

Discover the best attractions in Thousand Islands. Find inspiration for your trip with our curated list of top-rated spots, local favorites, and hidden gems.

The 10 best attractions in Thousand Islands

new-york/thousand-islands/attraction/boldt-castle-boldt-yacht-house

Boldt Castle & Boldt Yacht House

Explore the romantic legacy of Boldt Castle on Heart Island, a historical masterpiece and stunning tourist attraction in Alexandria Bay, NY.

1 Heart Island, Alexandria Bay, NY 13607
4.8 Excellent 5,671 reviews
new-york/thousand-islands/attraction/uncle-sam-boat-tours

Uncle Sam Boat Tours

Discover the beauty and history of the Thousand Islands with Uncle Sam Boat Tours in Alexandria Bay, NY, perfect for all adventure seekers.

45 James St, Alexandria Bay, NY 13607
4.6 Excellent 4,547 reviews
new-york/thousand-islands/attraction/wellesley-island-state-park

Wellesley Island State Park

Discover Wellesley Island State Park, a natural gem in New York offering endless outdoor adventures and breathtaking scenery in the Thousand Islands region.

44927 Cross Island Rd, Fineview, NY 13640
4.7 Excellent 1,311 reviews
new-york/thousand-islands/attraction/1000-islands-tower

1000 Islands Tower

Experience breathtaking views and local charm at the 1000 Islands Tower, a premier observation deck and gift shop in Ontario's stunning 1000 Islands region.

716 Highway 137 Hill, Island, Lansdowne, ON K0E 1L0, Canada
4.5 Excellent 1,178 reviews
new-york/thousand-islands/attraction/singer-castle

Singer Castle

Explore the stunning Singer Castle on Dark Island, a historical treasure in New York's Thousand Islands, rich in beauty and stories.

1136 County Route 6, Chippewa Bay, NY 13623
4.6 Excellent 767 reviews
new-york/thousand-islands/attraction/keewaydin-state-park

Keewaydin State Park

Experience the breathtaking landscapes and recreational adventures at Keewaydin State Park in the Thousand Islands region of New York.

45165 NY-12, Alexandria Bay, NY 13607
4.5 Excellent 448 reviews
new-york/thousand-islands/attraction/confederation-park

Confederation Park

Experience the natural beauty and community spirit at Confederation Park in Gananoque, Ontario, a perfect retreat for relaxation and recreation.

10 King St E, Gananoque, ON K7G 1E6, Canada
4.5 Excellent 538 reviews
new-york/thousand-islands/attraction/1000-islands-seaway-cruises

1000 Islands & Seaway Cruises

Discover breathtaking views and rich history with 1000 Islands & Seaway Cruises in Brockville, Ontario, perfect for unforgettable adventures.

30 Blockhouse Island Pkwy, Brockville, ON K6V 4S9
4.2 Very Good 746 reviews
new-york/thousand-islands/attraction/antique-boat-museum

Antique Boat Museum

Explore the Antique Boat Museum in Clayton, NY, where maritime history meets stunning river views and classic boat craftsmanship.

750 Mary St, Clayton, NY 13624
4.7 Excellent 611 reviews
new-york/thousand-islands/attraction/tibbetts-point-lighthouse

Tibbetts Point Lighthouse

Explore the Tibbetts Point Lighthouse, a historic gem offering stunning views of the St. Lawrence River and a glimpse into maritime heritage.

33435 County Rd 6, Cape Vincent, NY 13618
4.7 Excellent 763 reviews

More to explore in Thousand Islands

Jump into the most useful discovery pages nearby, from experiences and heritage highlights to food, stays, shopping, and evening ideas.

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More about Thousand Islands

Discover the Thousand Islands in New York State: A captivating archipelago with stunning natural beauty, historic castles, and endless outdoor activities.

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