The map on my phone has issues with the address given, but here are the coordinates of the turn off pleasant mills rd. 39 38 30 N, 74 38 52 W
From Toms River you might as well hop on the parkway to exit 58. At the exit light turn left towards Tuckerton, and then take the first right just past the pw south off ramp (should be a sign for bass river sf there). Take that to where it ends at an intersection with stage road. Go right, pass over the pw, and continue straight until the fork at pilgrim lake campground (red building on right). By this point you will have passed BRSF and should see signs for batsto. Take the left road at the fork and continue until it ends at a curved intersection and bridge. Take the right and cross the bridge. You will continue on this road until reaching Wharton/batsto on the right (when you reach a long curve bordering the mullica to the left you are only a few minutes away). Total extra trip from 58 is normally around 20-30 minutes.