
A demanding 10.4-mile out-and-back hike from Waterton to Bertha Lake. Expect 2,450 ft of elevation gain and 5–7 hours for fit hikers, with rocky upper sections and limited shade.
Moderate
Best for hikers with solid endurance and experience with long days on exposed, uneven terrain. Not ideal for beginners; trekking poles and sturdy ankle-support boots are strongly recommended.
Bertha Lake with turquoise water and red argillite rocks; waterfalls along the route; Bertha Point lookout over Upper Waterton Lake
Officially rated moderate, but Bertha Lake Trail is demanding: 10.4 miles round-trip with about 2,450 feet of elevation gain. Expect 5–7 hours for fit hikers; the surface shifts from packed dirt to loose rock and scree in the upper half.
No official shuttle service. With limited parking, carpool and arrive early; if the lot is full, be prepared for a wait or to adjust plans.
Photo spots include Bertha Lake with distant mountain views, the rocky upper slopes, and viewpoints along Cameron Lake Road. Bring a wide-angle lens for the lake and a telephoto for distant peaks.
• Consider hiking the loop around Bertha Lake for different perspectives. • Start early to beat crowds or hike later in the day. • Bear spray and loudness; stay on trail. • Trekking poles help on slippery/icy sections. • Pack water and snacks for the lake edge and Bertha Point.
April–October; peak conditions July–September
Lower Bertha Falls is easier and suitable for families; the ascent to Bertha Lake is steeper
Parks Canada entrance fee required to enter Waterton Lakes National Park; day-use and annual passes available in person
No shuttle required; trailhead within walking distance of Waterton townsite
Carry bear spray and stay bear-aware; avalanche danger near Bertha Peak; post-wildfire areas may have uneven ground and reduced cover; expect sun on ascent; use trekking poles on loose scree
Lower Bertha Falls is easier and suitable for families; the ascent to Bertha Lake is steeper
Waterton townsite amenities; Bertha Lake backcountry campground vault toilets
Based on 95 Google reviews
Таня Чмиль
This is a great trail, not very steep and easy to hike. I did it along. Beautiful views you can see during walking and waterfalls at the end like a cherry on top of the cake! So peaceful and relaxing! Just take a bear spray with you. I didn’t see any this time but I know there are lots of them in that area.
Nafis Azad
We really enjoyed this hike as a family. My 8-year-old had a bit of a challenge because there was no shade along the route and it was very hot. We started around 11 AM, and the whole way had no tree cover—likely due to a recent wildfire, as most of the trees were burnt. The trail was steep on the way up, so be prepared for the elevation gain.That said, the reward at the end was worth it—the waterfall was absolutely beautiful, and my son didn’t want to leave! I highly recommend wearing good hiking shoes and starting early in the morning to avoid the heat and potential sunburn.
Mackenzie Kure
A beautiful day hike, moderate difficulty with many sites along the way - from viewpoints to waterfalls. I enjoyed lounging by Bertha Lake for the afternoon, swimming and relaxing before completing the loop around the lake.
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Yes. Carry bear spray and stay loud; make your presence known on the trail.
Parks Canada entrance fee is required to enter Waterton Lakes National Park; pay on entry.
No. The trailhead is within walking distance of Waterton townsite.
Yes. You can filter from the outlet stream near the backcountry campground and from Bertha Lake.
Lower Bertha Falls is approachable for families, but the ascent to Bertha Lake gets steeper; proceed with caution.
Micro-spikes or snowshoes may be needed; waterproof footwear and trekking poles help on slick, icy sections.
Deer, marmots, pikas; bear awareness is crucial; make noise and store food properly.
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