Sunfish love hanging around docks,bridges,walls,trees,tree overhangs,and rocks. Not to mention sunken brush piles and ledges by drop offs. During late spring through October dock slips and docks are good places to catch sunfish. Also try water where there are overhanging tree limbs. Sunnies love to stay under the tree limbs and wait of insects to fall into the water. Creeks and ponds are also great places to catch em. Good luck and hope you post up some of your trips.