Lake Louise, Alberta

Where it sits. Lake Louise is both a hamlet on the Bow River and the lake above it, in Banff National Park, 60 km northwest of Banff townsite and about two hours west of Calgary on the Trans-Canada Highway. The village sits at roughly 1,540 metres; the lake is a further 200 metres up a switchback road, held in a hanging valley with Mount Victoria and its glacier closing the far end 3 km away. The water is 2.4 km long and about 70 metres deep, and the surrounding peaks — Fairview, the Beehives, Mount Whyte — rise a kilometre and a half above it in Cambrian limestone and quartzite.

Why it is that colour. The lake is fed by meltwater from the Victoria Glacier, which grinds bedrock into a suspension of silt so fine it is called rock flour. Those particles stay suspended and scatter the blue-green end of the spectrum back out of the water. The effect is strongest in mid to late summer when melt is at its peak; in early June, before the melt loads the lake, the colour is paler, and from November to early June the surface is frozen and the question is moot. The lake was shown to the Canadian Pacific Railway outfitter Tom Wilson by a Stoney Nakoda guide in 1882 — the Stoney name refers to the fish that live in it — and Wilson called it Emerald Lake. It was renamed two years later for Princess Louise Caroline Alberta, Queen Victoria's daughter, for whom the province is also named.

The Chateau and the tea houses. The CPR put up a log chalet on the shore in 1890 to give its transcontinental passengers a reason to stop. It burned, was rebuilt, was extended in wood, burned again in 1924, and was replaced by the concrete wing that dominates the shoreline today. The hotel now runs to several hundred rooms and is the reason the lake gets the traffic it does. Two backcountry tea houses, both still without road access and both supplied by horse and helicopter, are the classic walks: Lake Agnes, built by the railway in 1901, is 3.4 km and about 400 metres of climb above the shoreline; the Plain of Six Glaciers house, built by Swiss guides in 1927, is 5.3 km along the valley toward the glacier. Both operate in summer only and neither takes cards reliably. The Big Beehive, Devil's Thumb and Fairview Lookout extend the day for stronger walkers.

On screen, and a correction. Travellers routinely assume that the great Alberta mountain films were shot here. Almost none of them were. Parks Canada tightly restricts commercial filming inside national parks, so productions that need mountains work east of the park boundary in Kananaskis Country, on the Bow Valley's provincial lands and in the foothills. Brokeback Mountain (2005), set in Wyoming, was made entirely in Alberta but on Moose Mountain, the Elbow valley and Fortress Mountain, not at Lake Louise. The Revenant (2015) used the Bow Valley, Kananaskis and, when the snow failed, Argentina. The snow-fortress sequence in Inception (2010) was built at the closed Fortress Mountain ski area in Kananaskis. The great exception is River of No Return (1954), Otto Preminger's western with Marilyn Monroe and Robert Mitchum, which did shoot inside Banff and Jasper — on the Bow River, at Maligne Canyon and Athabasca Falls, and around the Banff townsite, where Monroe's injured ankle became international news. What Lake Louise supplies to the screen now is stills, documentary and tourism film rather than drama.

Winter, and the crowd problem. From late November the lake freezes hard enough to clear a skating rink, and the hotel carves an ice castle beside it; the Ice Magic Festival brings ice carvers in January. The Lake Louise Ski Resort across the valley is one of the largest ski areas in North America and opens the alpine World Cup downhill season each late November. In summer, the shoreline parking lot fills before sunrise, and Parks Canada now runs a reservable shuttle from a park-and-ride on the highway; Moraine Lake, 14 km away in the Valley of the Ten Peaks, has been closed to private vehicles entirely since 2023 and is reachable only by shuttle, bus or bicycle.

Getting there and timing. Drive from Calgary in two hours, or use the shuttle and regional bus services from Banff and Canmore, which are the sane option in July and August. A national park pass is required for every vehicle. Canoe rental at the boathouse is expensive and worth doing at eight in the morning, when the water is still and the Victoria Glacier is lit. The lakeshore path is flat, wide and accessible for the first kilometre; everything above it is not.