What's This?

[deguspice]

What this?

Comments screened until the desired answer is found. (This should be an easy one)

(Idea borrowed from [Bad username or site: @ livejournal.com])


Edit: I got a couple answers, but it's an explanation of the big black thing at the center that I'm looking for.

Comments

[deguspice.livejournal.com]

Definitely not water.

[awfief.livejournal.com]

Right, but the exact center of that is the baseball fields. Or are you referring to the small black square just south of the baseball fields?