The weather on much of this day in Banff National Park ranged from poor to terrible (including wind and strong thunderstorms). I knew that, if the rain at least mostly stopped, this was the perfect time to visit Johnston Canyon. The ground would be wet and colors would appear very saturated with a circular polarizer filter cutting reflections. The lighting would be void of hard shadows and ... would (somewhat) reach into this cave.
Johnston Canyon is typically packed during the short summer tourist season, but a late-in-the-day arrival timed just after a heavy thunderstorm (waited in the SUV for it to pass) meant that the trail was nearly void of people. Also, few people venture down the steep, slippery (at least when wet) slope to this cave and very unique land formation at the bottom of the canyon. A downside of the late day start meant that I had to run most of the trail, stopping only long enough to grab the occasional photo.
My initial plan (if I could find the cave in the first place) was to include the top of the interesting chunk of land in the frame, but that view included a bit of sky in the background. I went ahead and captured that set of images, but was undecided about the extreme difference in brightness the sky created. To eliminate the sky from the frame, I moved back/up into the large but shallow cave until the top of the cave blocked the sky.
As I find so often to be the case, the Canon EOS 5Ds R and the Canon EF 16-35mm f/4L IS USM Lens were the perfect combination for this landscape situation.