I'd rather be by the water than anywhere else.

Any water will do. Pond, creek, lake, river, ocean....even a chlorinated pool, if that's all that's available. As a kid, my parents had a hard time getting me out of the water once I was in it. And still today, my aerobic choice is swimming. To decompress, I fly fish for trout (C&R only) and when searching for a vacation spot, there is usually an ocean involved, with lots of snorkel time.

Now that I think about it, I am a true water baby at heart.