I have noticed a jet ski up in my neck of the woods from time to time. I wasn't paying much attention, but I will be in the future, including next summer. Why? I recently learned that the owner of said watercraft has been launching off of Jarvis Beach.
I am hearing that the Alderman is working the issue. I hope so. I did some research on the Chicago Park District code. There are harbors for a reason. Jarvis Beach is a public beach, although Mr. Jet Ski is ostensibly using the area roped off as private. I don't think the Park District is very supportive of watercraft launches in the vicinity of swimming areas. Watercraft and swimmers don't usually work well together.
I rode on a jet ski, and I watched it nearly sink courtesy of the shenanigans of some, allegedly, adult riders.
I have a working Nikon, and I get good pictures off it. If Mr. Jet Ski intends to continue launching off Jarvis Beach, I intend to be there whenever I know about it. Even if I have to wait until next summer.