My fiance and I decided spur of the moment one Sunday afternoon that it might be fun to rent a pair of jet skis. A quick Google search brought us to Great Lakes Jet Ski on the West bank of the flats, right next to Shooters. It was a little hard to find because the sign was not very obvious, but the parking attendant pointed us right away (and the racks of life jackets were a dead giveaway).
The forms and registration were quick and the licensing didn't take long. The staff was incredibly friendly and helpful. We got underway in no time at all. It was a blast! My only gripe would be the price, but I doubt it is any lower elsewhere in the area. Overall it was a sweet experience.