Do you have a depth finder on your kayak, other means to travel than paddles?
We stay in site #128 mostly. If we can't get it we try for 126 or 137. There's a bit of beach behind site 113 that we launch from mostly. By the pier at site 73 is a small beach too. What site have you reserved?
Look south at the next point, there's a white sign, Boy Scout camp. Out from the 2nd and 3rd inlets you can find habitat in 30 ft of water. Plan to fish 24 ft deep. A 1/100th white jig and a 1/8th oz sinker 3 ft above does pretty good.