St. Lawrence Islands National Park wilderness guide
National Park · Ontario

St. Lawrence Islands National Park

St. Lawrence Islands National Park protects a series of islands along the St. Lawrence River, offering unique opportunities for boating, camping, and wildlife viewing in a freshwater archipelago setting.

National Park5,680 acres4+ Trails

Designation

National Park

Total Wilderness Area

5,680 acres

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About St. Lawrence Islands National Park

St. Lawrence Islands National Park protects a series of islands along the St. Lawrence River, offering unique opportunities for boating, camping, and wildlife viewing in a freshwater archipelago setting.

Wilderness Landscape & Natural Heritage

St. Lawrence Islands National Park, located in Ontario, Canada, comprises over 20 islands and parts of the mainland on the St. Lawrence River. Spanning approximately 2,300 hectares, the park preserves a rare freshwater archipelago ecosystem that hosts a diverse range of plant and animal life, including many species native to the Great Lakes-St. Lawrence forest region. Established in 1895 as one of Canada's earliest national parks, it was originally known as Thousand Islands National Park, reflecting the region’s extensive island system. Visitors can explore rocky shorelines, sandy beaches, and mixed hardwood forests while enjoying activities such as boating, kayaking, canoeing, and camping at various island sites. The park is particularly noted for its birdwatching opportunities, including sightings of bald eagles, ospreys, and migrating waterfowl. The island-based campsites allow a unique back-to-nature experience accessible primarily by boat, fostering a peaceful environment away from urban centers. Historical features include remnants of old settlements and cultural sites linked to Indigenous peoples and early European settlers. St. Lawrence Islands National Park attracts outdoor enthusiasts and nature lovers with its combination of aquatic recreation, wildlife habitat, and remote island landscapes, making it a distinctive destination on the St. Lawrence River corridor.

Field Guide · National Park
Adventure Destinations

Notable Destinations Near St. Lawrence Islands National Park

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ Boat-accessible island campsites offering secluded wilderness experiences✦ Diverse freshwater archipelago ecosystem with rare plant and bird species✦ Rich cultural history including Indigenous heritage sites and early settler remains✦ Outstanding birdwatching opportunities, especially for bald eagles and migratory waterfowl
Wilderness Recreation

Outdoor Adventures in St. Lawrence Islands National Park

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in St. Lawrence Islands National Park
Park Recreation

Camping

Available in St. Lawrence Islands National Park
Park Recreation

Wildlife Viewing

Available in St. Lawrence Islands National Park
Park Recreation

Fishing

Available in St. Lawrence Islands National Park
Park Recreation

Paddle Sports

Available in St. Lawrence Islands National Park
Park Recreation

Birdwatching

Available in St. Lawrence Islands National Park
Park Recreation

Photography

Available in St. Lawrence Islands National Park
Park Recreation

Boating

Available in St. Lawrence Islands National Park
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in St. Lawrence Islands National Park.

Passes & Fees

Entrance Requirements & Interagency Passes

Park entry is free; island campsites require reservations and fees through Parks Canada

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Wilderness Stays

Camping & Overnight Stays in St. Lawrence Islands National Park

Frontcountry developed campgrounds, backcountry wilderness permit guidelines, and starry-night camping advice.

Brown's Bay Campground

Located on the mainland's edge, offering vehicle access and hiking trailheads nearby; popular for families.

Wolfe Island Campgrounds

Boat-access only sites on Wolfe Island featuring shoreline views and a remote experience.

Devils Oven Campground

A sequestered island campground known for its dramatic natural rock formations and quiet surroundings.

Adventure Basecamps

Gateway Towns Near St. Lawrence Islands National Park

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Wellesley Island, New York
⌖ 5.40 miles
Gateway Basecamp

Wellesley Island, New York

Wellesley Island in New York’s St. Lawrence River is a top spot for hiking, paddling, fishing, and camping. With accessible trails, calm waters, and lakeside campgrounds, it’s a refreshing outdoor destination from late spring through fall.

Late Spring through Early Fall
Explore Town
Gananoque, Ontario
⌖ 6.15 miles
Gateway Basecamp

Gananoque, Ontario

Gananoque is a friendly town on the St. Lawrence River, perfect for paddlers, hikers, and anglers exploring the spectacular 1,000 Islands. Enjoy boating, cycling, and winter sports with easy access to parks and water adventures.

Late Spring to Early Fall
Explore Town
Alexandria Bay, New York
⌖ 6.32 miles
Gateway Basecamp

Alexandria Bay, New York

Alexandria Bay is a lively gateway to the Thousand Islands with outstanding boating, paddling, fishing, and hiking. Explore historic castles, scenic river views, and seasonal outdoor adventures in a welcoming small-town setting.

Late spring through early fall
Explore Town
Upper Town Landing, New York
⌖ 7.26 miles
Gateway Basecamp

Upper Town Landing, New York

Upper Town Landing, New York, offers a quiet riverside retreat ideal for kayaking, canoeing, and fishing along the Hudson River. Nearby trails and birdwatching spots add to its appeal as a peaceful outdoor destination.

Late Spring to Early Fall
Explore Town
Clayton, New York
⌖ 8.12 miles
Gateway Basecamp

Clayton, New York

Clayton, NY, is an outdoor playground where paddling the Thousand Islands, hiking scenic trails, and fishing on the St. Lawrence River come together. This friendly river town offers year-round adventure with charming local culture.

Late Spring to Early Fall
Explore Town
Long Point, Ontario
⌖ 10.83 miles
Gateway Basecamp

Long Point, Ontario

Long Point, Ontario is a peaceful lakeside destination famous for prime birdwatching, hiking scenic trails, paddling calm waters, and enjoying lakeside camping along Lake Erie’s unique sand spit.

Late spring through early fall
Explore Town
Expert-Led Wilderness Expeditions

Guided Experiences in St. Lawrence Islands National Park

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

Ride the River: Hacker Craft Cruise and La Duchesse Houseboat Tour in Clayton
ADVEXPEDITION
Clayton, New York
Boat TourADV Bookable

Ride the River: Hacker Craft Cruise and La Duchesse Houseboat Tour in Clayton

The All Inclusive Admission Package pairs a 45‑minute ride aboard a 30′ triple‑cockpit Hacker Craft with a 30‑minute guided walking tour of La Duchesse and full museum admission—this guide clarifies timing, booking limits, and accessibility.

Boat TourPT2HCertified Outfitter
Bookable OnlineBook Trip