This is possibly the best Mount Robson viewpoint, as it has it all: Mount Robson, turquoise Berg Lake, nicely shaped glacier and several foreground options.
Photo tips: Wide angle lens, possibly even a panorama is what you'll most likely need here. The viewpoint doesn't disappoint anytime, but both sunsets and sunrises bring a great light here.
Getting there: An overnight stay in one of the campgrounds below in the valley is needed. Then just expect ~1 hour to get up here and find a nice spot for you composition.
The last photo of the day, as the remaining light nicely illuminated Mount Robson and its glacier.