Parks Manager
Thousand Islands National Park

Thousand Islands National Park: planning guide

Scattered St. Lawrence islands and mainland parcels east of Kingston. Oldest park east of the Prairies.

Thousand Islands National Park is in ON, Canada. The nearest town is Gananoque — roughly 17.3 km (10.7 mi) out, about 29 min of driving.

When to go

Best window: May through October. Shoulder season: April and early November.

Winter brings cold, shorter days, and reduced services, though lower-elevation trails often stay walkable.

Peak summer weekends and autumn colour weekends fill parking lots early — arrive before mid-morning.

Full seasonal breakdown for Thousand Islands National Park

Closest towns and cities

Towns nearest Thousand Islands National Park
TownDistanceEstimated drive
Gananoque17.3 km (10.7 mi)29 min
Brockville34 km (21.1 mi)48 min
Kingston44.3 km (27.5 mi)59 min
Smiths Falls61.9 km (38.5 mi)1 hr 18 min
Perth65.6 km (40.8 mi)1 hr 22 min
Sharbot Lake75.1 km (46.6 mi)1 hr 32 min
Greater Napanee80.3 km (49.9 mi)1 hr 38 min
Napanee80.3 km (49.9 mi)1 hr 38 min

Where Thousand Islands National Park sits

Official Thousand Islands National Park site — hours, closures, and fees.

Drive times from Thousand Islands National Park

Thousand Islands National Park sits close enough to Rouge National Park, Georgian Bay Islands National Park, and La Mauricie National Park that one drive from home can cover more than one park.

Parks you can pair with Thousand Islands National Park
ParkApartEstimated drive
Rouge National Park266 km (165 mi)4 hr 22 min
Georgian Bay Islands National Park316 km (196 mi)5 hr 6 min
La Mauricie National Park358 km (222 mi)5 hr 43 min

Parks close by

Common questions

Where is Thousand Islands National Park?

Thousand Islands National Park sits in ON, Canada. Gananoque, about 17.3 km (10.7 mi) away — roughly 29 min of driving.

When is the best time to visit Thousand Islands National Park?

Generally May through October, with April and early November quieter on either side.