From Point Breeze, you can see Toronto on a clear day. That being said, watch the weather! I've been on the lake when they claim 1' or less waves and reality is far from it - more like 2-3' waves with white caps. In a 20' boat that wasn't fun so I can only imagine what it'd be like in a jetski.
Wivb.com usually lists the lake forecasts once boating season kicks up so you might want to check there. Point Breeze also has a coast guard or sheriff's station (I forget which) right there so if you run into trouble, you do have authorities available to assist.
As an FYI: I took a ride up to Point Breeze this past weekend and it's about 18-24" lower than normal. Areas that you probably could pass with a jetski in previous years are now dry land.
What time are you planning on making your run? If its over the weekend and you're using the free launch, you might find parking your rig a little interesting as its a small ramp with parking for about 20 rigs at most. Overflow goes onto the streets. There's also a state launch, I believe a $7 fee and I don't believe they allow overnight parking, which has a larger parking area.
Stop over at Brown's Berry Patch when you're finished with your trip for some ice cream
Anything else I can help with??