Brooklyn Beach Half Marathon. Bring it! The Half Marathon run is on a marked course. It’s a great way to build on your long run and enjoy the sea breeze! Chip timing with splits and your final time! Run the famous Riegelmann Boardwalk in Coney Island, get a taste of the best beach in NYC, and then enjoy the sights and tastes in the area. Even take a dip in the ocean to cool off after running your 13.1 miles.