You can cover some water flippin and pitching this surface cover with some sort of punch bait. Also throwing a frog over the top might get you some results.
https://www.google.com/maps/place/Swift+Creek+Reservoir/@37.4371354,-77.698404,278m/data=!3m1!1e3!4m5!3m4!1s0x89b17147dc1b5a0b:0x94552f7b071687c2!8m2!3d37.434166!4d-77.6679292
Also, since you have a kayak, you can get to areas most people cant. Why not try way up swift creek
https://www.google.com/maps/place/Swift+Creek+Reservoir/@37.4471344,-77.6988311,1004m/data=!3m1!1e3!4m5!3m4!1s0x89b17147dc1b5a0b:0x94552f7b071687c2!8m2!3d37.434166!4d-77.6679292