Three Isle Lake

Overview

Three Isle Lake is a classic Kananaskis backpacking objective: a turquoise basin tucked high above Upper Kananaskis Lake with a small, sought-after backcountry campground. It feels remote without being extreme, and it anchors longer adventures deeper into the pass country on the Alberta–BC line.

Getting There

The standard approach starts at North Interlakes Day Use and follows the Upper Kananaskis Lake Circuit/Three Isle Lake Trail for 10.3 km to reach the lake. Expect a steady, scenic hike that tracks the lakeshore before climbing into the hanging valley that cradles Three Isle Lake. Along the way, many parties break at Forks Backcountry Campground (about 7.1 km from the trailhead).

Camping Details

The Three Isle Lake Backcountry Campground has 16 tent sites, some tucked in the trees above the water and others near the shore. Facilities are simple but practical: pit/vault toilets and secure food storage lockers. Water comes from the lake or creek (treat it). Fires aren’t permitted here. Reservations open 90 days before arrival, and sites are generally limited to one tent and six people. Fees are charged per person per night.

What Else Is Nearby

If you’ve got gas in the tank, the trail continues past the lake to South Kananaskis Pass, with the option to push on toward Beatty Lake. Closer to the trailhead, The Forks is a convenient staging campground with bear lockers, picnic tables, pit toilets, and a communal fire pit.

Wildlife

You’re in prime habitat for large mammals—grizzly and black bears, moose, elk, bighorn sheep, cougars, lynx, and wolves all roam this park. Make noise, keep food secured in the lockers, and carry bear spray.

Best Time to Visit

Plan your trip within the posted backcountry season (June 25–November 29). Outside those dates the campground is out of season. For the latest advisories and any closures, check Alberta Parks before you go.

Need-to-Know

• There’s no cell service throughout much of the park, including this route.
• Backcountry permits and reservations are required to stay at the lake.
• Treat all surface water and bring a stove—no campfires are allowed.