Thanks Engor and jeffs! Bow is much better trip in my opinion than Cirque across the highway, because it feels more "off the beaten track", with similar rewards in scenery.

I was intrigued by option of descending on the other side towards Hector Lake, then angling left back to Icefields. I vaguely remember someone doing that and mentioning bit of (true) bushwhack towards the end, but I am not 100% certain.