I'm quite enjoying a bit of late-evening frog photography. There's a window of about 10 minutes around dusk between the frogs emerging, and my autofocus not being able to work due to the low light levels. Flash penetrates beneath the water level quite nicely, since all I could (just about) see of this fellow was the top of his head.
I love these little guys, they're a clear sign that the environment they live in is clean, too bad they aren't that smart; I believe in "Man Plus" it's described as they can only discern between food/not food when something small passes in front of them.