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Saint Lawrence Islands National Park   

Saint Lawrence Islands National Park
courtesy of Parks Canada

Contact Information:
Saint Lawrence Islands National Park
2 County Road 5, RR 3
Mallorytown, Ontario
Canada K0E 1R0
(613) 923-5261

Size: 20 sq. km. 

Location: Located in the heart of the Thousand Islands area, an 80-km wide extension of granite hilltops joining the Canadian Shield of northern Ontario with the Adirondack Mountains in New York State. The mainland headquarters (Mallorytown Landing) is located on the Saint Lawrence River between Brockville and Gananoque, Ontario. Travelers on Highway 401 take exit 675 south; U.S. visitors travel north on I-81 to 1000 Islands Parkway, then turn east. Access to park islands is by private boat or commercial water taxi (by appointment only). 

Description: The first Canadian national park east of the Rocky Mountains is the site of the preserved hull of a British gunboat from the War of 1812, raised from the St. Lawrence River near Mallorytown Landing. The presence of the Great Lakes to the west has the effect of a 'heat sink' which moderates the climate in the area immediately surrounding the Thousand Islands. As a result, many plants and animals reach the limits of their range in the Thousand Islands. 

Facilities: Saint Lawrence Islands is a water-oriented park with facilities more than 24 islands and 90 islets scattered through the St. Lawrence River corridor. Many park islands include docks, nature trails, primitive campsites (12 islands; available on a first-come-first-served basis), group campsites (on Grenadier Island and Mallorytown Landing; reservations only), privies, and shelters. The day-use area at Mallorytown Landing includes a small beach, boat launch, picnic area, and restrooms. Exhibits on natural and cultural history are open to the public during the operating season and by appointment during the rest of the year. 

: Camping, hiking, swimming, kayaking, canoeing, boating, boat tours, scuba diving, bicycling, interpretive programs, nature camps for children. Both power and sailboaters use the park islands as stopping off points for a day or overnight enroute down or up the St. Lawrence River. Cedar Island, off Kingston, is a stopover for boaters sailing into Lake Ontario or as a starting off point for cruising up the Rideau Canal. 

Places to Stay: The Park takes reservations for the two group campsite areas at Mallorytown Landing and Central Grenadier Island only. Parks Canada operates the campgrounds in the park. Campground reservations can be made online or by calling 1-877-737-3783. All other services such as day-use and overnight docking and individual island campsites are on a first-come, first-served basis. For information on places to stay near the park, contact the Ontario Tourism Marketing Partnership Corporation by calling 1-800-ONTARIO. 

Operating Hours: Full services are available from mid-May to early October (Victoria Day weekend to the Canadian Thanksgiving weekend).

: Established in 1904 as the first national park located east of the Rockies.

See other Canadian National Parks
See other Ontario National Parks


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