Jet Skis are the best for "rock hunting" as my 4 year old calls it. We go out with the small Bizer map and find the hazards listed near the bouys. It only draws 5-6" of water so you can certainly see the rocks and avoid them if you are just going 4-5 MPH. The map is easy to use as it has the lines to show you what side to be on. If you are not sure stop and figure it out.
I find it great fun to pick a bouy on the map and find out why it's actually there. Especially fun to see all the outdrive marks on each rock
Then you can navigate some pretty tricky areas in the boat with confidence.
Just watch for the Anchor Marine boat rentals. Several times I have had them come on the worng side of the bouy thinking I must be on the correct side
