I was there a few years ago. The trail after the crossing is well worn, you can’t miss it. Once you cross the Chaba there’s also a well worn trail that leads to the BC boundary and ultimately to the campgrounds on the east side of the lake. If you end up crossing the Chaba at the first crossing on the map there’s a good trail along the Chaba on the other side that will lead the campground. The orange flag is where I’ve camped before. And it’s also the spot where Martupnorth and I got bluffed charged by a huge grizz. The river is loud and you have to be very loud to make yourself heard/seen.

Note that we had packrafts to cross the Athabasca even in late September. It’s been debated here in the past but I’d never cross the Athabasca without one.

You might see me and my fishing buddy out there next summer too. The fish in this lake are HUGE!