Heading to the Big G next weekend

Hey guys, I was wondering if there were any fish in the jumps yet? I'll have the wife with me and will be looking for numbers more than big fish. I'm fairly familiar with the lake, been going a couple times a year for about 4 years now. If someone could just point me in the right direction it would be appreciated. http://www.bassboatcentral.com/boardstuff2/beers.gif

Excuse my ignorance but what are the "jumps"?
thanks