Parking
Use the designated parking at Cave and Basin National Historic Site and follow site parking rules. Roam Route 4 also serves the site; it is about 2 km or a 30-minute walk from downtown Banff.

Banff National Park, AB
Easy wetland loop with boardwalks and birding at Cave and Basin
Overview
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.
Recorded for this trailhead
Cave and Basin: Birthplace of Canadian Parks“You're coming up on the Cave and Basin National Historic Site, the very spot where Canada's entire national park system began.”
Plays as you drive up to this trailhead in the Parkwolf Banff Tour Guide.
More stories near here in the app
Trail guide
Marsh Loop is an easy 1.7-mile (about 2.7-km) loop from Cave and Basin National Historic Site. The mapped loop returns to the same trailhead and normally takes about 1 hour. It follows the wetland circuit rather than continuing onward to Sundance Canyon.
The trail circles a wetland fed by hot springs flowing from the lower slopes of Sulphur Mountain. Expect a mostly flat route with minimal elevation gain, packed dirt or track, boardwalk and bridge sections, wetland pools, and Bow Valley scenery. It is a good short walk for birding and observing wetland life.
Start at the signed Marsh Loop access at Cave and Basin National Historic Site. Use the designated site parking and follow Parks Canada access rules; Roam Route 4 serves the site, which Parks Canada describes as about 2 km or 30 minutes on foot from downtown Banff. Heavy horse use can make the trail muddy after rain. Boardwalks and bridges may be slippery or icy, and dogs should remain leashed and under physical control.
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
EasyCave and Basin Boardwalks1 km · 45 min · 0.8 km awayEasy, steamy stroll through hot springs, wetlands, and history.
ModerateSundance Canyon Trail9.5 km · 3 hr · 0.8 km awayPaved approach to a steep, water-filled canyon loop from Cave and Basin
EasyDiscovery Boardwalk0.6 km · 24 min · 0.8 km awaySteam, snails, and the birthplace of Canada’s parks
EasyBow River Trail (Banff)2.7 km · 1 hr · 2.2 km awayEasy out-and-back from Central Park to Bow Falls
EasyVermilion Lakes Trail8.5 km · 2.5 hr · 2.2 km awayA flat lakeside drive with Mount Rundle reflections and easy wildlife watching
EasyBow Falls Trail2.4 km · 48 min · 2.5 km awayEasy Bow River walk from the Banff Pedestrian Bridge to Bow Falls
EasyTunnel Mountain Summit Trail4.5 km · 2 hr · 3 km awayBanff’s quickest summit for big town views with minimal effort.
EasyHoodoos Trail8.9 km · 3 hr · 3 km awayModerate Bow River trail linking Surprise Corner and the Banff Hoodoos viewpoints.
Sight · 0.7 km awayFirst World War Internment ExhibitSobering, free WWI internment story behind Cave and Basin
Sight · 0.8 km awayBasin PoolSteaming historic hot spring that launched Canada’s park system
Sight · 0.8 km awayCave & Basin National Historic SiteBirthplace of Canada’s parks with a steaming cave and rich history
Sight · 1.4 km away2nd Vermilion LakeClassic Mount Rundle reflections with easy lakeshore access
Sight · 1.4 km awayVermilion LakesEasy-access Rundle reflections with docks, wildlife, and calm water
Sight · 1.4 km awayVermilion Lakes ViewpointRoadside Rundle reflections with wildlife and big-sky sunsets
Sight · 1.6 km awayWarner StablesBase for horseback rides and winter sleighs by the Bow River
Sight · 1.9 km awaySundance CanyonBike a mellow path to a waterfall‑laced canyon loopParkwolf’s Banff ranking