I like to paddle and fish two of the local town's lakes, both of which are dammed.... so there is always something to look at whilst paddling. But my favorite places to paddle are Mercer County Park Lake (its big, has varied terrain, and lots of wildlife) and a strech of hte deleware that runs from just south of Lanbertville to the Washington Crossing State Park bridge (near Titusville, NJ). You park at Washington Crossing park and paddle up the canal about 3 miles until you see the obvious dirt road that leads to the boat lanch. Its right across from the 'Golden Nugget' flea market on 29 just south of lambertville. Then you walk the kayak 50 yards down to the river and float downriver back to the park. Its all easy entry and exit and the canal current is usually nil.
The river has great smallmouth bass action. Mercer County Lake has great bass, crapie, sunfish and even some muskies if you come equiped for them.
I like kayaking the tributaries of the Mullica River. More specifically I like to put in at Atsion Lake and pull out in Batso. Its about 4 hours with plenty of places to stop and snack and you wont see another soul.