Crypt Lake Trail

Why hike it

If you want a full-value mountain day—big scenery, legit exposure, and a destination that actually lives up to the hype—this is it. Crypt Lake sits in a dramatic, horseshoe-shaped alpine cirque, often holding ice or snow well into summer. Getting there is half the story: you’ll pass multiple waterfalls, then tackle a steel ladder, a narrow natural tunnel, and a cable-assisted cliff traverse before the final drop to the lake. It’s an adventure hike with real stakes and real payoff.

The route

Most hikers start with a 15-minute boat ride across Upper Waterton Lake from the Waterton townsite to Crypt Landing. From there, the out-and-back trail climbs steadily through forest with periodic views. A longer alternate spur visits Hell Roaring Falls; the mainline continues past Twin Falls and Burnt Rock Falls before the headliner: slender Crypt Falls plunging over 150 m from the hanging valley above. Beyond the falls, the track narrows and steepens to the famous trio—ladder, tunnel, and exposed ledge with a fixed cable—then eases to the lakeshore. Many add an optional ~45‑minute circuit of the lake, though expect scree and lingering snow even mid‑season.

Stats and difficulty

Plan on about 11.4 miles/18.3 km round trip (total) with roughly 700–730 m/2,300 ft of gain. Most hikers take 6–8 hours, including time at the lake and waits at the ladder/tunnel bottleneck. The exposure and narrow tread make this strenuous; it’s best for fit hikers comfortable with heights.

Scenery and what to watch for

This is classic Rockies: glacially carved cirque walls, turquoise water, and four noteworthy waterfalls along the way. Keep an eye out for mountain goats and bighorn sheep on the cliffs near the lake. The lake holds Cutthroat Trout, and fishing is permitted with a valid license.

Access and logistics

There’s no road access to the trailhead—plan your day around the seasonal ferry to and from Crypt Landing. Boats can and do fill during peak season; book ahead and catch an early crossing so you’re not rushing the last return boat.

Best time to hike

Late June through September is prime. Earlier in summer, snow and ice can linger on the upper trail and around the lake, which makes the tunnel, ledge, and scree more serious. Weekdays and an early boat help with the heavy crowds and delays at the cable/tunnel section. Weather turns quickly here—pack layers even on clear mornings.

Tips

• Start early and budget time for queues at the ladder and tunnel.
• Carry plenty of water, food, and warm layers; sections are exposed and conditions change fast.
• Bear country: carry bear spray and know how to use it.
• Footwear with excellent grip matters on roots, rock, and loose scree.
• Dogs: allowed but the ladder, tunnel, and narrow ledges turn many parties back—be realistic about your pet’s abilities.

Is it worth it?

For adventurous hikers, absolutely—one of the park’s signature days, equal parts thrill and scenery. If exposure isn’t your thing or you want something shorter and less crowded, consider other valley trails in Waterton instead.