As I've said before, I volunteer with the Big Brothers Big Sisters program. I've been a Big Brother for almost a year now. I took my Little Brother Mr. B to the park near my house as he had never been before and it was good-ish weather that day. He wanted to get near the water and look for salamanders.
He didn't see any, but he found a few tadpoles. He thinks he saw a fish, but I didn't spot it. The water is fairly muddy and doesn't have much "life" in it.
Near the waterfall section, I saw this group just hanging about. It was obvious they were doing something interesting.
They were having a race with RC cars. That's pretty neat! Though, I'd be too worried about accidentally driving one (or it falling) into the water and being ruined.