At the Botanic Gardens, again.
A large sprinkler was making its rounds and leaving a trail of drops across the surface of a pond. This was my second shot, but I really wanted the focal plane about another foot further away. I stayed for another ten minutes, but the drops didn't ever quite fall the same way again.
Details: Nikon 105mm 1:2.8 macro, 1/125s, ISO 200, levels.