Thousand Islands Parkway trail
A paved recreational trail running beside the scenic Parkway along the St. Lawrence, with island views most of the way.
Thousand Islands, Ontario
The classic gateway to the Thousand Islands: boat tours among granite islands and summer cottages, a national park in the river, and a playhouse on the water.
Photo: The Gananoque Boat Line's Thousand Islander cruise boat, Mykola Swarnyk, CC BY-SA 3.0
Gananoque sits where the Gananoque River meets the St. Lawrence, right in the heart of the Thousand Islands. Boats leave the waterfront to weave among the islands, some passing Boldt Castle and the famous island cottages.
East of town, the Thousand Islands Parkway runs along the river with a paved trail beside it, and Thousand Islands National Park protects islands and shoreline nearby. Hop on a bike or a boat and wander.
Trails, lookouts, waterfalls, beaches and time on the water come first.
A paved recreational trail running beside the scenic Parkway along the St. Lawrence, with island views most of the way.

A waterfront park with a small beach and picnic spots near downtown.
Parks Canada's island park, with mainland trails at Jones Creek and Mallorytown Landing and island camping by boat.
A clear, rocky Canadian Shield lake with hiking trails and rock shelters, north of the river.
Island cruises from the town dock, including longer trips toward Boldt Castle, now run as City Cruises Gananoque.
Season Seasonal, check official site.

An observation tower on Hill Island with views over the islands and the border.
Museums, landmarks and the places people come here for.

A small main street with shops, cafés and the old town hall overlooking the river.
Canada's first railway tunnel, now a lit walkway with a light-and-sound show, in nearby Brockville.
A waterfront museum telling the story of the Thousand Islands and their people.
A professional summer theatre with stages on the river.

A grand early-1900s castle on Heart Island, in New York waters. Reached by boat; passport required.
Cruises from the village of Rockport, east along the Parkway.
Season Seasonal, check official site.
Cruises, tours and experiences people book here. Each one goes to the operator's official page, and you can still add it to your trip.
Castle tours on an island in the St. Lawrence, reached by boat.
Season Tours roughly May–fall (check before you go).
These are in the lists above, so we don't repeat them here.
Part of our Thousand Islands guides.
Boldt Castle, river parks and the Antique Boat Museum, over the Thousand Islands Bridge. A passport is required.
Kingstonabout 30 min · Guide ↗Fort Henry, the limestone downtown and the free Wolfe Island ferry.
Brockvilleabout 40 min · Guide ↗Canada's first railway tunnel, the waterfront and the Aquatarium.
Photo: The Gananoque Boat Line's Thousand Islander cruise boat, Mykola Swarnyk, CC BY-SA 3.0
Photo: The St. Lawrence from Joel Stone Park, Gananoque, Finn Long, CC BY-SA 4.0
Photo: The Thousand Islands seen from the 1000 Islands Tower, King of Hearts, CC BY-SA 4.0
Photo: Thousand Islands Railway locomotive on display in Gananoque, Mykola Swarnyk, CC BY-SA 3.0
Photo: Boldt Castle on Heart Island, Nandaro, CC BY-SA 3.0