Parking
Park at the Mount Shark Trailhead off Spray Lakes Road (742); follow signs for the Bryant Creek approach.

Banff National Park, AB
Steep, stunning gateway to Marvel Lake and Mount Assiniboine
Overview
If you want the showpiece views above Marvel Lake and a direct line into the Mount Assiniboine country, this is the way in. Starting at the Mount Shark Trailhead, the Wonder Pass route works up the Bryant Creek corridor before climbing hard to Wonder Pass and dropping toward Lake Magog. It’s a serious backcountry day for the ultra‑fit or, more commonly, a rewarding 1–2 day backpack for those who like their scenery earned.
Plan on roughly 16.5 miles (about 26.5 km) one way from Mount Shark to Lake Magog via Wonder Pass. The bookends aren’t glamorous: you begin and end on wide, sometimes dull old logging roads and forest tracks. But the middle act is the reason you’re here—larch forests, wildflower meadows, and a dramatic traverse high above the deep blue of Marvel Lake. The climb to the pass is steep and sustained; near the top, a short side path leads to an even better perch over the lake and distant peaks.
From the pass, the trail rolls through airy meadows toward Gog Lake and the historic Naiset Huts area, with Mount Assiniboine’s unmistakable profile popping into view. Keep your eyes out for birdlife around Gog Lake (great blue herons have been spotted at this surprising altitude). The broader landscape is classic Canadian Rockies—glaciated valleys and uplifted sedimentary peaks framing the whole experience.
This route is remote and rugged in places, crossing avalanche paths and high country where weather turns on a dime. Mid‑July to late September is the sweet spot: snow is less likely to block the pass, wildflowers peak in summer, and the larches put on a golden show in fall. Do note that early September can still deliver sudden snow.
Logistics matter here. Most backpackers link this route with Assiniboine Pass for a loop; a smart play is to ascend via Assiniboine Pass (gentler) and descend via Wonder Pass for the views. Backcountry camping and huts require advance reservations and permits—especially along Bryant Creek and at Lake Magog/Naiset Huts. Carry bear spray, travel in a group if you can, and bring a good map or offline nav app. Expect limited frills and plenty of payoff.
Bottom line: the approach has some grind, but the Wonder Pass section itself is elite—one of the most scenic corridors to Mount Assiniboine you can hike.
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Banff Tour Guide
Parkwolf is a GPS audio tour guide for Banff National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
More stories near here in the app
Wildlife
122 sightingsGrizzly BearMost seen around 6 AMSighting map
150 sightingsBrown BearMost seen around 6 PMSighting map
44 sightingsGray WolfMost seen around 6 AMSighting map
12 sightingsRiver OtterMost seen around 8 PMSighting map
67 sightingsMooseMost seen around 8 PMSighting map
465 sightingsBlack BearMost seen around 9 PMSighting mapSighting maps show where each species has been reported across Banff. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ChallengingAssiniboine Pass Trail25.6 km · 8 hr · At the trailheadClassic gateway to Assiniboine with big views after a long valley.
ModerateBryant Creek Trail26.4 km · 8 hr · At the trailheadLong out-and-back from Mount Shark to Bryant Creek Shelter and Assiniboine gatewaysModerateMiddle Spray River Trail52.5 km · 12.5 hr · 3.2 km awayRemote linear Spray River corridor from Canyon Dam toward Goat Creek
ModerateBurstall Pass Trail15.4 km · 5.5 hr · 9.3 km awayVaried approach to a larch-lined pass with big Spray Valley views
Sight · 9.3 km awayBurstall PassGolden larch views and big-mountain vistas at a border pass
Lodging · 11.2 km awayBryant Creek ShelterSimple backcountry hut on the Assiniboine route with a wood stove
Sight · 12.6 km awayMarvel LakeRemote alpine lake on the Wonder Pass route to Assiniboine
Historic marker · 15.5 km awayBC Alberta Border MarkerRemote Continental Divide marker with big views and a fun photo lineParkwolf’s Banff ranking