Keyport harbor leads into Matawan creek. My marina along with several others are located at the mouth of the creek. A damn was built on Ravine drive to form lake Lefferts. So it is a tidle creek and you will catch plenty of crabs and people of caught Bluefish,Fluke,Weakfish,and all the typical species. And yes, Its the location of the 1914 shark attacks that inspired the movie Jaws. The other creek you see,Just to the north is what we usually call Morgan creek. Thats a longer creek and boats go up in it to fish or just hang out. Several marinas are up their too. Most people set up crab traps in this area. I have kayaked it a few times and the current can get strong at times. You can access it them both From rt.35.