77 south to 250 East.
You will pass Coreys shop on the left about 2 miles before Tappan Lake on rt 250,if you want to stop in early and say hello to Corey.
As far as the campground goes....the entire Tappan Lake shoreline runs right along route 250.At the far east end of the lake you will see a road to the right(Its the only one)turn here and it will take you to the campground.