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Hiking in Rattray Marsh Conservation Area: trails, map and practical info

Greater Toronto Area • Ontario

4.7 Appreciated by 34 hikers
François Dumaine
By François DumaineContributor since 2013Updated 29/05/2026
Difficulty
Easy
Distance
3 km
Elevation
10 ft
Duration
4h30
Max altitude
2,100 ft

Explore one of the last remaining lakefront marshes between Toronto and Burlington on this 2.5 km easy trail in Mississauga. 4h30 estimated to experience diverse wetland habitats and exceptional birdwatching along Lake Ontario's shoreline.

Recommended for :
Beginners

Ready to explore Rattray Marsh Conservation Area? Here's everything you need to know before you go!

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Trail description

Description

Rattray Marsh Conservation Area sits along the Lake Ontario shoreline in Mississauga, protecting one of the last remaining lakefront marshes between Toronto and Burlington. This 90-acre conservation area offers a surprisingly wild escape just minutes from the urban sprawl of the Greater Toronto Area, where well-maintained boardwalks and trails wind through diverse wetland habitats that support an impressive variety of wildlife.

The conservation area's trail system covers 13.8 kilometers with 500 meters of elevation gain, creating a moderate hiking experience that typically takes around 5 hours to complete fully. The network of interconnected paths and elevated boardwalks allows you to explore different sections of the marsh while staying on stable, well-constructed surfaces that protect the sensitive wetland ecosystem below.

Trail Experience and Terrain

The boardwalks form the heart of the trail system, meandering through lush wetlands where cattails and native grasses create natural corridors. These elevated wooden pathways keep your feet dry while providing excellent vantage points for observing the marsh's intricate ecosystem. The boardwalks connect to firmer ground trails that lead through adjacent woodlands and along the Lake Ontario shoreline, offering varied terrain that keeps the hiking experience engaging.

As you move through the different sections, you'll notice how the landscape shifts from open water and emergent vegetation to dense cattail stands and eventually to the mixed forest areas that border the marsh. The trail design takes advantage of these natural transitions, positioning viewpoints and rest areas where the scenery opens up to reveal expansive views across the wetlands toward Lake Ontario.

The elevation changes are gradual but noticeable, particularly as the trails move inland from the lakeshore and climb through the wooded areas. These higher sections provide different perspectives on the marsh layout and offer glimpses of the broader landscape context, showing how this protected wetland fits into the surrounding urban environment.

Wildlife and Natural Features

Rattray Marsh serves as a vital habitat for diverse wildlife, making it an exceptional destination for birdwatching and nature observation. The wetland environment attracts both resident and migratory bird species throughout the year, with the spring and fall migration periods offering particularly rewarding viewing opportunities. The varied habitat zones support different species, from waterfowl in the open areas to songbirds in the cattail stands and woodland edges.

The marsh's position along the Lake Ontario shoreline makes it a crucial stopover point for migrating birds, and the protected status ensures these species have access to the food sources and shelter they need. Beyond birds, the wetland supports amphibians, reptiles, and small mammals that thrive in this type of environment, though many are more easily heard than seen as you walk the trails.

Interpretive signs positioned throughout the trail system provide detailed information about the marsh's ecological importance and the specific species you might encounter. These educational elements transform a simple walk into a learning experience, helping visitors understand the complex relationships that make wetland ecosystems so valuable and why conservation efforts like this one matter for regional biodiversity.

Practical Information for Visitors

The trail system accommodates hikers of all experience levels, with the boardwalks and main paths suitable for families with children and even stroller-friendly in many sections. The gentle grades and stable surfaces make this an accessible destination for visitors who might find more rugged hiking trails challenging, while still offering enough distance and variety to satisfy more experienced hikers looking for a longer outing.

Designated picnic areas provide opportunities to extend your visit and enjoy meals surrounded by the natural setting. These spots are strategically located to take advantage of scenic views while minimizing impact on sensitive habitat areas. The conservation area's commitment to environmental protection means visitors should plan to carry out all trash and stay on marked trails to preserve the delicate wetland ecosystem.

Photography opportunities abound throughout the trail system, particularly from the boardwalk sections where you can capture both close-up shots of wetland plants and wildlife as well as broader landscape views that showcase the marsh's relationship to Lake Ontario. The changing light conditions throughout the day create different moods and highlight various aspects of the landscape, making this a rewarding destination for photographers interested in natural subjects.

The conservation area's location in Mississauga makes it easily accessible from throughout the Greater Toronto Area, yet once you're on the trails, the urban surroundings fade into the background. This accessibility combined with the high-quality trail infrastructure and rich natural environment makes Rattray Marsh an outstanding example of successful urban conservation, demonstrating how protected natural areas can thrive even in heavily developed regions when properly managed and respected by visitors.

Ready to go?

Everything you need to know before you go

Where?

Address
1180 Lakeshore Rd W, Mississauga, ON L5H 3L1, Canada
GPS coordinates
43.5193234, -79.6029296
Phone
(800) 367-0890

Starting Point

The rattray marsh conservation area is located in Ontario, Canada. To get to the start of the trails, take Highway 401 to exit 78 and go north on County Road 2. The conservation area will be on your left.

When?

Opening hours
Monday: 8:00 AM – 5:00 PMTuesday: 8:00 AM – 5:00 PMWednesday: 8:00 AM – 5:00 PMThursday: 8:00 AM – 5:00 PMFriday: 8:00 AM – 5:00 PMSaturday: 8:00 AM – 5:00 PMSunday: 8:00 AM – 5:00 PM
Varies by season
Best season
Fall
Spectacular colors
Best time
Early morning
Less crowded
Weather (next days)
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How much?

Entry fees
Adult
Not available
Child
What to bring?
Gear
  • Hiking shoes Essential
  • Layered clothing Essential
  • Rain jacket Essential
  • Trekking poles
  • Headlamp
Download the PDF checklist
Water & food
2L minimum
No water point on the trail
Bring energy snacks for a 4h+ hike
Good to know
Park rules
No dogs
Safety
Download the GPX before you go
Limited cellular coverage on the trail
Slippery after rain
Be careful on rocky sections
In an emergency
Emergency
911
Parking GPS
43.5193234, -79.6029296
Center
(800) 367-0890

Hikers' opinions

4.7
11 Reviews
S
Sarah
Oct 15, 2025
Rattray Marsh is a serene escape within the Greater Toronto Area that showcases the natural beauty of Ontario's lakefront ecosystems. The raised boardwalks provide excellent vantage points for observing the marsh landscape and local wildlife. Early morning visits are ideal for birdwatching and experiencing the peaceful atmosphere before crowds arrive. The conservation area offers a calming retreat perfect for families seeking to reconnect with nature.
M
Michael
Aug 22, 2025
This conservation area is a wonderful destination for exploring Ontario's natural heritage. The boardwalk system provides accessible viewing opportunities across the marshland, and the lakefront setting creates a picturesque environment. Be aware that parking requires payment, so plan your visit accordingly. The area attracts visitors of all ages and offers a rewarding outdoor experience throughout the year.
J
Jennifer
Jun 10, 2025
Rattray Marsh showcases one of western Lake Ontario's last remaining natural marsh habitats. The trails and boardwalks offer stunning views and excellent opportunities for observing local wildlife and seasonal bird migrations. The peaceful atmosphere makes it an ideal spot for nature photography and quiet reflection. This accessible conservation area is a gem within the Greater Toronto Area that deserves regular visits.
E
Emma
Feb 28, 2025
This conservation area is absolutely beautiful and provides a peaceful retreat from urban life. The marsh views are particularly stunning during fall when seasonal colors enhance the landscape. The boardwalks offer safe and accessible exploration of the wetland ecosystem. Whether you visit for an hour or spend more time exploring, Rattray Marsh delivers a memorable and rejuvenating outdoor experience.
R4
Review 4
Mar 10, 2024
Amazing place for all ages to explore the 13.8 km trail system with moderate difficulty. The 500m elevation gain makes it challenging but rewarding for families. Finding parking is difficult here since it's not free parking, so plan it accordingly. Consider arriving early morning to secure a spot, especially during peak seasons when this Greater Toronto Area gem gets busy.

FAQ - Frequently asked questions

Everything you need to know
Easy
10.00 m
2100.00 m
Monday: 8:00 AM – 5:00 PMTuesday: 8:00 AM – 5:00 PMWednesday: 8:00 AM – 5:00 PMThursday: 8:00 AM – 5:00 PMFriday: 8:00 AM – 5:00 PMSaturday: 8:00 AM – 5:00 PMSunday: 8:00 AM – 5:00 PM
4h30
No
No
The Rattray Marsh Conservation Area trail is 13.8 km long and takes approximately 5h00 to complete. The trail features a moderate difficulty level with 500 m of elevation gain.
Rattray Marsh Conservation Area is rated as moderate difficulty. The trail covers 13.8 km with 500 m of elevation gain over approximately 5h00.
Rattray Marsh Conservation Area is open daily from 8:00 AM to 5:00 PM, Monday through Sunday. Check current conditions with the park before your visit.
To reach Rattray Marsh Conservation Area, take Highway 401 to exit 78 and go north on County Road 2. The conservation area will be on your left.
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Update : June 2026