Of the animals at Radnor Lake, the otters are the most fun because they are so elusive, appearing and disappearing as they dive for fish. I saw three otters swimming across the lake early in the morning and waited till they got near the shore. Then they disappeared, but by following the trail of bubbles along the shore I caught this otter just before he disappeared again - for good.

Canon 70D with 70-300 mm lens at 300 mm; 1/400 second at f/5.6, ISO 320.