Bourgeau Lake is an alpine water reservoir located at the foot of Mount Bourgeau in Banff National Park, Alberta, Canada. It's a popular hiking destination from Calgary, yet not too crowded. The picturesque lake with clear sapphire water is surrounded by wildflowers and rocks. The views near the lake are magnificent and definitely worth a day hike.
The Bourgeau Lake Trail is a 17.5 km (11 mi) both ways with an elevation gain of 1,269 m (4,163 ft) and is rated as difficult. Summer and early fall are the best seasons to hike this trail, namely late June through early September. The trail features forest and waterfall views, as well as wildlife and bird observation opportunities. Pika (rabbit), marmots and chipmunks are usually seen on the trail. The trailhead is located in about 2.5 km (1.6 mi) past the Sunshine Village.
Bourgeau Lake is suitable for a picnic. From there you can continue the ascent to Harvey Pass which is a couple of kilometres away to get a better view of the lake. From the pass, hikers can see Mt. Assiniboine, the tallest Banff peak, 3,618 m (11,870 ft) high, and scenic Sunshine Meadows.