A 500-hectare urban wilderness peninsula jutting into Lake Ontario, created from decades of construction fill. Now one of the most important bird migration stopovers on the Great Lakes, with hiking and cycling trails, a lighthouse, stunning skyline views, and an astonishing diversity of wildlife — all completely free.
Free: 1 Leslie St, Toronto · Season: year-round
Tommy Thompson Park is one of the most remarkable urban wilderness areas in the world — a 500-hectare peninsula that extends five kilometres into Lake Ontario, created from decades of construction and demolition fill, and now home to one of the most significant wildlife habitats on the Great Lakes. Known locally as the Leslie Street Spit (for the road that runs its length), the park is a testament to nature's ability to reclaim and transform industrial landscapes. It is also completely free, offering hiking, cycling, birdwatching, and some of the most dramatic skyline views in Toronto.
The Park's Origin
Tommy Thompson Park began in the 1950s as a convenient disposal site for construction fill from Toronto's booming development. Trucks dumped rubble, soil, and construction waste into the lake, gradually building a peninsula that extended further and further into the water. What started as industrial waste management unintentionally created new land.
By the 1970s, nature had begun colonizing the fill. Grasses, shrubs, and trees took root. Birds discovered the habitat. Fish found shelter in the breakwaters. The Toronto and Region Conservation Authority (TRCA) recognized the ecological potential and began managing the site as a natural area.
Today, the park is a thriving mosaic of habitats: cottonwood forests, wet meadows, shrub thickets, sandy beaches, and rocky breakwaters. It hosts over 300 bird species, 50 butterfly species, and numerous mammals, reptiles, and amphibians. It is designated as an Important Bird Area by BirdLife International.
Wildlife and Birding
Tommy Thompson Park is one of the premier birdwatching locations in eastern North America. The park's position on the lake makes it a critical stopover point for migratory birds traveling along the Great Lakes flyway.
Spring Migration (April–May): Over 100 species pass through, including warblers, sparrows, thrushes, waterfowl, and raptors. The park records regular sightings of rare species like the Kirtland's warbler and the prothonotary warbler.
Fall Migration (August–November): The return migration brings different species, including shorebirds, ducks, geese, and hawks. The park's hawk watch platform is a popular spot for observing raptor migration.
Breeding Season (May–July): Over 55 bird species nest in the park, including colonies of double-crested cormorants, black-crowned night herons, and great egrets. The cormorant colony on the peninsula's east side is one of the largest in the Great Lakes.
Butterflies: The park's meadows support a diverse butterfly population, including monarchs, swallowtails, and skippers. The Monarch Waystation program helps support migrating monarchs.
Other Wildlife: The park is home to foxes, rabbits, muskrats, mink, and occasionally deer. Reptiles including painted turtles and snapping turtles inhabit the wetlands. The lake side of the peninsula hosts nesting ring-billed gulls and common terns.
Trails and Recreation
The park's main trail runs the full five-kilometre length of the peninsula, from the entrance at the foot of Leslie Street to the lighthouse at the tip. The trail is flat and wide, suitable for walking, cycling, and wheelchairs (though surfaces can be rough in sections).
The Main Trail: A 5-km gravel and asphalt path running the length of the peninsula. The trail passes through all of the park's major habitats, from the entrance wetlands to the forested middle section to the open tip.
The Lighthouse: At the very end of the peninsula, the Tommy Thompson Park lighthouse offers panoramic views of the Toronto skyline, the lake, and the surrounding harbour. The view is comparable to Polson Pier but from the opposite side of the harbour.
The Breakwaters: Rocky peninsulas extending into the lake on both sides of the main trail. These offer fishing spots, water access, and views of passing boats and wildlife.
The Wetlands: Several ponds and wetland areas near the entrance attract waterfowl, herons, and amphibians. Boardwalks and observation points provide viewing access.
Cycling: The main trail is popular with cyclists. The flat terrain and lake views make for an easy, rewarding ride. The trail connects to the Martin Goodman Trail at the entrance.
The Basil H. Irwin Nature Centre
The park's nature centre, located near the entrance, provides information about the park's ecology, wildlife sightings, and trail conditions. It is open on weekends when the park is open. The centre offers educational displays, maps, and knowledgeable staff who can answer questions about what to see.
Visiting the Park
Tommy Thompson Park is open:
- **Weekends:** Saturday and Sunday, year-round
- **Holidays:** Open on statutory holidays
- **Weekdays:** Closed to the public (TRCA staff and researchers only)
- **Hours:** The park opens at sunrise and closes at sunset
- **Admission:** Always free
The park is open in all weather conditions, though trail conditions vary seasonally. In winter, the trails can be snow-covered and icy. In spring, sections may be muddy. The park has no facilities — no washrooms, no water fountains, no food vendors, and limited garbage bins. Visitors must bring everything they need and carry out their trash.
Getting There
Tommy Thompson Park is at 1 Leslie Street, at the foot of the Leslie Street bridge in the Port Lands:
- **TTC:** The 83 Jones bus stops at Commissioners Street and Leslie, a 10-minute walk south; the 72 Pape bus connects to the area
- **Car:** Drive south on Leslie Street to the end — the park entrance is at the foot of the street, just before the bridge to the Port Lands. Free parking is available at the entrance lot
- **Cycling:** The Martin Goodman Trail connects directly to the park entrance; the ride from downtown along the waterfront is flat and scenic
- **Walking:** From the Distillery District, walk east along the waterfront path (approximately 30 minutes)
Nearby Attractions
- **The Distillery Historic District:** A 15-minute walk or 5-minute bike ride northwest
- **Polson Pier:** The famous skyline viewpoint is a 10-minute drive or 20-minute bike ride west
- **The Port Lands:** An emerging recreational district being redeveloped with new parks and trails
- **Cherry Beach:** A popular swimming beach, a 10-minute walk south through the Port Lands
Practical Tips for Tourists
- The park is only open on weekends and holidays — plan accordingly
- Bring water, snacks, and sun protection — there are no facilities in the park
- Wear sturdy footwear — the trails are gravel and can be uneven
- Binoculars are highly recommended for birdwatching
- The park is exposed to wind off the lake — dress in layers
- Cyclists should bring a lock if planning to leave their bike to explore side trails
- The lighthouse at the tip is the reward for the full 5-km walk — worth the effort
- Check the TRCA website for seasonal wildlife alerts and trail conditions
Visitor tip
The park is only open on weekends and holidays (closed weekdays). Spring and fall migration seasons bring hundreds of bird species. Bring binoculars. The 5-kilometre main trail leads to the lighthouse at the peninsula tip with incredible skyline views.