Trout Lake, Yellowstone National Park
An hour and a half wait on the shores of trout lake were rewarded by Momma Otter and her three pups swimming up and onto a log directly in front of me. For five minutes they played, dove, groomed, and nuzzled on that log, before heading off along the shoreline and vanishing. It was an amazing five minutes.
Canon 5D mark III, Sigma 50-500mm OS