This was taken while Vancouver was underneath wildfire smoke from the USA. It made getting around outside a little hazardous.
I underestimated the smoke itself this morning, as I thought I'd be OK for an easy shoot; no hikes involved, just set up and find something interesting. I really liked the purple hue the smoke took at just before sunrise proper, it gave an otherworldly effect to the scene.
I felt like complete garbage for a few hours after taking this, though. Completely not advisable to do again... but to be honest, I'd consider it, if I could get similar results. :-)