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The Heart of the Thousand Islands

By August 1, 2026No Comments

Known for its laid-back charm and easy access to historic castles, Alexandria Bay, New York, is a place where summer days are best spent on the water exploring the Thousand Islands.

The world-famous Thousand Islands is a storied stretch of the St. Lawrence River that is a boater’s paradise like no other. This amazing archipelago spanning 50 miles along northern New York and southeastern Ontario is comprised of a little more than 1,000 islands — 1,864 to be exact. This area is renowned for its storybook castles, cottages and legendary Thousand Island dressing.

Nestled right in the heart of the Thousand Islands is Alexandria Bay, New York. The coastal village is a welcoming gateway to the Thousand Islands. There’s plenty of dockage, and it’s a short stroll from your slip to enjoy the many shops, restaurants, live music and events throughout the summer.

Millionaire’s Row

Alexandria Bay’s historic harbor is as close to river royalty as it gets. The shoreline overlooks the American Narrows and a string of islands with grand summer estates known as Millionaire’s Row that date back to the region’s Gilded Age in the late 1800s and early 1900s.

The region exploded as a summer resort for the rich and famous in the late 1880s. President Ulysses S. Grant cast an international spotlight on the Thousand Islands when he visited Pullman Island in 1872. Chicago railway tycoon George Pullman built the first castle in the Thousand Islands in 1888 on Pullman Island, also known as Castle Rest. The castle was later demolished, but its granite gazebo remains as part of a stately cottage on Millionaire’s Row.

Nearby Cherry Island is known for its Gilded Age retreats: There’s Casa Blanca, with its gargoyle statues lining the shorelines, and a sprawling estate once owned by Nathan Strauss, owner of New York City’s Macy’s department store.

Today, Alexandria Bay remains a unique summer playground popular with tourists and boaters alike.

The village has sweeping views of the region’s top tourism attraction, Boldt Castle on Heart Island, located just off its shores. Uncle Sam’s Boat Tours offers sightseeing cruises of Millionaire’s Row and excursions to Boldt Castle from Alexandria Bay, as well as to Singer Castle on Dark Island, located in Chippewa Bay, New York. The tour boat company celebrates its 100th anniversary on the river this year.

A river heritage

A boat trip through this floating world is like navigating back in time. Majestic freighters glide across the shipping channel, passing castles and historic lighthouses along the way. Wooden antique boats, megayachts and tall ships share the river with cruise ships, powerboats and sailboats.

The region is a dream destination for freshwater boating and fishing at its finest, known for its bass, pike and muskie. Divers from around the world come here to explore its many shipwrecks. You can boat through the International Rift or ride under the Thousand Islands International Bridge and explore its sandy coves.

Alexandria Bay prides itself on its St. Lawrence River heritage. Cornwall Brothers Store and Museum, located in a landmark waterfront building, has exhibits highlighting the village’s history and river lore. Every island here tells a story.

Take Devil’s Oven Island. Legend has it that a notorious pirate named Bill Johnston hid out in a cave in this uninhabited island in 1838 after torching a British steam ship with a band of Patriot rebels on Wellesley Island. Deer Island near Boldt Castle has been a rustic retreat for Yale University’s Skull and Bones secret society since 1856. Among its members: U.S. presidents George Bush Sr., George W. Bush and Howard Taft.

The Independence Day Fireworks over Boldt Castle are a spectacular annual tradition. Take in the annual poker run, classic boat shows, and watch out for swashbuckling pirates during the village’s Bill Johnston’s Pirate Days weekend, being held August 14 – 16 this year. Alexandria Bay is known for its vibrant live music scene and offers a free weekly summer concert series this summer at Scenic View Park Pavilion until August 26.

Visit1000islands.com

Uncle Sam Boat Tour / Visit1000islands.com

Top Photo: Cherry Island / visit1000islands.com

Resources

Alexandria Bay Chamber of Commerce
visitalexbay.org

1000 Islands International Tourism Council
visit1000islands.com

Antique Boat Museum
abm.org

Boldt Castle: A legacy of love

Boldt Castle and its tragic love story put Alexandria Bay on the map. George C. Boldt, the proprietor of the Waldorf Astoria hotel in New York City, started building the fairy tale castle in 1900 for his beloved bride, Louise.

Boldt purchased the island, once called Hart, and changed its name to Heart Island. The castle was designed with a ballroom and a palatial playhouse for the couple’s two children. Boldt halted construction of the castle in 1904 when Louise died of a heart condition at 41. Heartbroken, he never returned to Heart Island. The castle was left vacant for 73 years before it was gifted to the Thousand Islands Bridge Authority.

Since 1977, millions of dollars have been invested in the restoration of the castle and the Boldt Yacht House on nearby Wellesley Island.

Boldt Castle is the major tourism attraction in the Thousand Islands today, attracting over 200,000 visitors annually. You can actually boat up to the castle and dock here for a tour. Visitors arriving by personal watercraft can dock at both Boldt Castle and Singer Castle for tours during the summer season, from May through October.

Singer Castle: The castle of mysteries

Singer Castle is the only lived-in castle in the Thousand Islands. Sewing machine mogul Frederick Bourne was one of the richest men in the world when he built the 28-room castle on Dark Island in 1904 with his own yacht house. Bourne referred to it as his “hunting and fishing lodge.” A self-made multi-millionaire, Bourne served as the commodore of the New York City Yacht Club. Originally called The Towers, it was designed as a medieval castle with turrets, secret passageways and even a dungeon. In 1905, the New York Times dubbed Singer Castle “The Castle of Mysteries.”

It remained in the Bourne family for six decades. When Bourne died in 1919, his daughter, Marjorie, inherited Singer Castle. In 1961, she donated it to La Salle Military Academy in Oakland, New York, for less than $100, but the academy could not find an appropriate use for the island. It was sold to a Montreal couple and an evangelical society in 1965. They renamed Singer Castle Jorsdadt Castle and held church services there for many years.

Dark Island Tours, Inc. — operated by several European businessmen, including Farad Vladi of Vladi Private Islands, the largest broker of private islands in the world — acquired Dark Island in 2001. After undergoing massive restorations, Singer Castle reopened as a tourism attraction in 2003. Dark Island Tours now rents out its Royal Suite for overnight stays at Singer Castle, including a guided tour of its spooky secret passageways.

Boldt Castle & Singer Castle / I LOVE NY © NYS Dept. of Economic Dev. (NYSDED); Boldt Castle Yacht House / yacht house facebook

Cornwell Brothers Store / I LOVE NY © NYS Dept. of Economic Dev. (NYSDED); Top of the Bay Bar and Tex Mex Bistro / Top of the Bay Facebook

Lively river village

Today, Alexandria Bay boasts a new modern harbor with dockage just steps away from nautically themed shops and restaurants. In just a few blocks, you’ll find everything from fine dining to pizza and casual pub fare.

Cavallario’s Steakhouse is a local traditional favorite specializing in seafood. 1864 Steak House, aptly named after the region’s 1,864 islands, is a steak house that serves up brunch, lunch and dinner, along with artisanal cocktails. The Blu Anchor Bar & Grill is known for its fish tacos and smash burgers. The River Watch restaurant serves signature cocktails alongside a menu including seafood, braised ribs and pasta. Top of the Bay Bar and Tex Mex Bistro offers scenic views of the St. Lawrence River on its open-air deck, a menu made from locally sourced ingredients and hand-crafted cocktails.

Looking for some casual pub fare and local craft beer? Check out Coleman’s Dock of the Bay, The Dockside Pub or the Sunken Rock Pub. Skiffs bar features live music. Sample craft spirits at Dark Island Spirits, a distillery with a tasting room featuring its in-house spirits, as well as craft wines and beers from local brewers and wineries. The historic Thousand Islands Club and Marina features a lounge and fine dining on nearby Wellesley Island overlooking Millionaire’s Row. It offers dockage and a 135-seat waterfront patio for prime ship watching. Enjoy fine cuisine, including seafood, steak and tapas, in the “river casual” atmosphere.

Pop in to Nav’s Popcorn in Alexandria Bay or The Whole Scoop Ice Cream Stand and Grill for a treat after a hot day on the river.

For a tasty souvenir, take home a bottle of authentic Thousand Island dressing sold here. Boldt has been widely credited with introducing the dressing to Alexandria Bay and the world. In one version of the story, his chef is said to have created it aboard Boldt’s yacht in a pinch with ingredients he had on hand. Boldt enjoyed it so much he named it after the Thousand Islands and served it at the Waldorf Astoria hotel.

Whether you come for the castles, the boating, the fishing, the waterfront village atmosphere or even the salad dressing, Alexandria Bay offers an ideal starting point for exploring the history, beauty and unique character of the Thousand Islands.

Thousand Island Dressing / simpleseasonal.com

More Information

2026 Calendar of Events

1. Open Doors on the River House Tours / Rotary Club website; 2. Thousand Islands Charity Poker Run / poker run website; 3. Bill Johnston’s Pirate Days / pirate days facebook; 4. Blues in the Bay Craft Fair / visitalexbay.org

June 24 – August 26 (Wednesdays):
Summer Concert Series

July 15 – 16
1. Open Doors on the River House Tour, featuring two Gilded Age private mansions

July 16 – 18
2. Thousand Islands Charity Poker Run

August 14 – 16
3. Bill Johnston’s Pirate Days

July 31 – Aug 2
Antique Boat Museum’s Antique Boat Show & Auction

September 4 – 7
Blues in the Bay

September 5
4. Blues in the Bay Craft Fair

September 13
Rollin’ Street Thunder Hogs and Rods Show

October 24
Trick or Treat

More Information

Marine & Resort facilities

Captain Thomson’s Resort / Resort Facebook; Riveredge Resort / Resort Facebook

Bonnie Castle Marina
315-482-2526 / 1-800-955-4511
bonniecastlemarina.com

Captain Thomson’s Resort
315-482-9961
captthomsons.com

Carnegie Bay Marina
315-778-2574
carnegiebaymarina.com

The Edgewood Resort & Conference Center
theedgewoodresort.com

Horizon Marina/Thousand Islands Club
315-482-9956
horizonmarina.com

Hutchinson’s Boat Works
315-482-9931
hbwboats.com

Ledges Resort & Marina
315-783-8605
ledgesresort.com

Riveredge Resort
315-256-9024
riveredge.com

Summerland Yacht Sales
summerlandyachts.com

Swan Bay Resort & Marina
315-482-7926
swanbayresort.com

Village of Alexandria Bay
Upper James Street Dock
villageofalexandriabay.com/village-docks/

Wagoner’s Marina
315-482-9776
wagonersmarinany.com

Photo Caption Bold / Photo credit align as needed