Grassi Lakes

Grassi Lakes is one of the most beloved and accessible natural attractions in the Bow Valley, offering visitors a spectacular reward for a relatively short hike. Named after Lawrence Grassi, a local coal miner and legendary trail builder, the area features two distinct trails that loop together. The easier route follows an old forestry road with a gentle incline, making it ideal for families with small children or those seeking a leisurely stroll. The more challenging interpretive trail winds through a forested area, ascending stone steps past a beautiful waterfall and offering sweeping views of the town of Canmore and the Bow Valley reservoir below.

Upon reaching the top, hikers are greeted by two magnificent, crystal-clear lakes that shimmer in vibrant shades of emerald and turquoise. These colors are the result of unique algae and the purity of the spring-fed water. Towering above the lakes are ancient coral reef formations that now serve as sheer limestone cliffs, attracting rock climbers from around the world. Whether you are an avid photographer, a climbing enthusiast, or simply a nature lover looking for a peaceful escape, Grassi Lakes provides an unforgettable Rocky Mountain experience.

Reasons to Visit

• Stunning, highly photogenic turquoise and emerald alpine lakes.
• Two trail options catering to different fitness levels and accessibility needs.
• World-class rock climbing routes on the surrounding limestone cliffs.
• Excellent opportunities for bird watching and spotting local wildlife.
• Close proximity to downtown Canmore, making it an easy half-day excursion.

Things to Avoid

• Do not swim or wade in the lakes; the ecosystem is highly sensitive.
• Avoid hiking the scenic/interpretive trail in winter or early spring without ice cleats, as it becomes dangerously slippery.
• Do not leave any garbage or food behind, as this attracts bears and harms wildlife.
• Avoid arriving mid-day during summer weekends, as the parking lot fills up very quickly.
• Do not hike off-trail, as this causes erosion and damages the delicate alpine flora.

Local Transportation Tips

The most convenient way to reach Grassi Lakes is by personal vehicle or rental car, driving up the Spray Lakes Road (Smith-Dorrien Trail) just past the Canmore Nordic Centre. During the peak summer months, the town of Canmore sometimes operates a local Roam Transit bus route that services the area, which is an excellent eco-friendly alternative that bypasses parking issues. Taxis and local ride-share services are also available from downtown Canmore to the trailhead.

Travel Etiquette

• Always yield to uphill hikers on narrow sections of the trail.
• Keep noise levels down to respect wildlife and other visitors seeking a peaceful nature experience.
• Pack out all trash, including biodegradable items like apple cores or banana peels.
• Keep dogs strictly on a leash and pack out their waste.
• Respect trail closures, which are often put in place for wildlife corridors or trail maintenance.

Recommended Age Group

Grassi Lakes is an exceptionally versatile destination that caters to visitors of almost all ages and abilities.

• Babies (0-2 years): Recommended. The 'Upper' trail is a wide, graded gravel path that is easily navigable with a sturdy, all-terrain stroller.
• Kids (3-12 years): Recommended. The short distance and exciting payoff of the lakes and waterfall make it a perfect introductory hike for children.
• Teens (13-19 years): Recommended. Teens will enjoy the scenic viewpoints, photography opportunities, and watching the rock climbers on the cliffs.
• Adults (20-64 years): Recommended. A great active outing that can be combined with other Canmore activities for a full day of adventure.
• Seniors (65+ years): Recommended. Active seniors will find the gentle incline of the Upper trail manageable, with plenty of benches along the way to rest and enjoy the forest.

Accessibility Level: Medium

• The 'Grassi Lakes Upper' trail is wide and features a gentle, consistent grade, making it accessible for all-terrain wheelchairs and sturdy strollers.
• The 'Grassi Lakes Interpretive' trail is not wheelchair accessible due to steep stone steps, uneven terrain, and narrow sections.
• Accessible pit toilets are available at the main trailhead parking lot.
• There are several benches placed along the Upper trail for resting.
• Visitors with mobility challenges should ensure they take the trail marked 'Easy' (Upper Trail) at the fork near the beginning of the hike.

Did You Know?

The towering cliffs above Grassi Lakes are actually the remains of an ancient Devonian coral reef that existed over 350 million years ago when the area was covered by a shallow tropical sea. Today, you can still spot fossilized coral and sponges in the limestone rocks around the lakes.

Cool Statistics

• Elevation Gain: Approximately 250 meters (820 feet) from the trailhead to the lakes.
• Trail Length: A 4-kilometer (2.5 miles) round trip loop.
• Lake Temperature: The spring-fed water remains at a near-freezing temperature year-round.
• Namesake: Named after Lawrence Grassi (1890–1980), an Italian immigrant, coal miner, and passionate mountain guide who built many trails in the Rockies.