Cleveland area launch ramps to go to Kelley's island???

[Luv2Camp]

So I have used the Shelby Street ramp in Sandusky to launch to make the trip over to KI but not liking the long no wake trip before I get out to the open water as it adds a lot of time going back and forth. Are there any other public ramps around Marblehead that I could use? Any parking fees at any I need to be aware of? Do they run out of trailer parking spots easily in the summer? Trying to weigh if it would be better to drive over the bridge and launch further north or stay at Shelby street ramp...

Thanks in advance...