On the second of two day trips to Lake O'Hara in Yoho National Park, we enjoyed some great conditions. Good light sparked the vivid colors of the larches, while strong wind currents aloft created endless forms in the clouds. At one point, the wind-blown patterns coalesced into this ghostly face hovering in the sky above Mount Hungabee and the Opabin Plateau. Lake O'Hara is one of the crown jewels of the Canadian mountain park system, and we devoured every minute of our time spent in this brilliant location.