Filming in Tunnel Mountain: what the rules allow.

The water below Tunnel Mountain is seen almost entirely from above: Surprise Corner and the Hoodoos Viewpoint both stand where the ground falls away to a river bend, which is precisely the geometry an aerial camera exists to exploit. That composition cannot be commissioned from a drone. The viewpoints, the resort roads and the river below them all lie inside Banff National Park, and the Parks Canada prohibition covers the whole frame — there is no legal launch point anywhere in it.

Atom2Adam says so before quoting. The elevated river angle is reached lawfully on foot at the viewpoints, whatever is legal by air is shot from outside the park boundary, and no flight is promised that park law forbids.

Light. The season changes what the viewpoints see — open water against snow in winter, full autumn colour at the river bend — and none of it changes the legal position, which is the actual constraint on aerial work.

Terrain. A forested shoulder on the east side of the townsite, benched with resort and campground roads, dropping past hoodoo spires to a river bend the viewpoints were built to overlook.

Wind. Chinook winds work through the mountain corridor with strong local variation around the shoulder of Tunnel Mountain itself; for aerial work the note is academic, because the constraint here is legal, not weather.

Airspace. Tunnel Mountain lies inside Banff National Park. Parks Canada prohibits launching, landing and operating a drone within the park without a permit, and those permits are issued for restricted purposes that do not ordinarily include commercial listing or marketing work. What can be shot legally is shot from outside the park boundary.

On the ground. Parks Canada regulation covers the entire shoulder, including the resort leaseholds and the viewpoints; no property-level consent overrides a national-park prohibition. About 90 minutes from the Calgary base. The drive has never been the issue here — the legal position is.