Some friends and I are looking to do a long, challenging route in Summer / Fall 2021.

We've done the WCT and the North Coast Trail seems like it's getting a bit popular as well.

Ideally this route would have some kind of "pilgrimage" or destination element to it, including a place where we could take a rest day and spend some time, like a lake or a mountain.

Any suggestions? Ideal if it could be reached from either Vancouver or Calgary within 4 hours drive.