Boldt Castle

A historic stone castle on a lakeside island with a clear sky.
A stone castle with towers on a lakeside island, surrounded by trees and a larger building in the background.
A stone castle with multiple towers by a calm lake, surrounded by lush greenery and a partly cloudy sky.
A historic mansion with a red roof and stone towers by a lake.
A stone structure with a statue on top by a waterfront.

Things to do

Private Tour to 1000 Islands from Toronto with Castle Boat Cruise

Private Tour to 1000 Islands from Toronto with Castle Boat Cruise

€683
per traveller
Private Tour to 1000 Islands from Toronto with Castle Boat Cruise
See all activities in Alexandria Bay

Stay near popular Boldt Castle attractions

Boldt Castle

9.4/10 (1,063 reviews)
After visiting Boldt Castle, make a plan to see the other sights and activities in Alexandria Bay. Amble around the area's riverfront or seek out the local tours.
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Top Hotel Deals

Bonnie Castle Resort & Marina

Bonnie Castle Resort & Marina

3 out of 5
31 Holland Street Alexandria Bay NY
Bonnie Castle Resort & Marina
Riveredge Resort

Riveredge Resort

3.5 out of 5
17 Holland Street Alexandria Bay NY
Riveredge Resort
Capt. Thomson's Resort

Capt. Thomson's Resort

3 out of 5
45 James Street Alexandria Bay NY
Capt. Thomson's Resort
Capt.'s Inn & Suites

Capt.'s Inn & Suites

2 out of 5
116 Church Street Alexandria Bay NY
Capt.'s Inn & Suites
Otter Creek Inn

Otter Creek Inn

2.5 out of 5
2 Crossmon Street Extension Alexandria Bay NY
Otter Creek Inn
Thousand Island Hart House

Thousand Island Hart House

2 out of 5
21979 Club Rd Wellesley Island NY
Thousand Island Hart House
Alexandria Bay, 1000 Islands Waterfront Cottage For Rent directly on the water,

Alexandria Bay, 1000 Islands Waterfront Cottage For Rent directly on the water,

Alexandria Bay NY
Alexandria Bay, 1000 Islands Waterfront Cottage For Rent directly on the water,
On The St. Lawrence River & in Downtown Alexandria Bay!

On The St. Lawrence River & in Downtown Alexandria Bay!

Alexandria Bay NY
On The St. Lawrence River & in Downtown Alexandria Bay!
Great Location to Downtown Alexandria Bay

Great Location to Downtown Alexandria Bay

Alexandria Bay NY
Great Location to Downtown Alexandria Bay
See all 561 properties in Boldt Castle
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.