From Long Island Expressway (495), take Exit 53 South (Sagtikos Parkway) to Southern State Parkway—eastern Long Island (left fork). Take Southern State Parkway to first exit (Exit 42 South—Fifth Avenue). Make a left at stop sign and then a right onto Fifth Ave. south. Take Fifth Ave. to Montauk Highway (27A). Make left onto Montauk Highway. At second light make a right onto Maple Ave. The main terminal (Ocean Beach) is the first terminal on the left - don't go to this one. 

OCEAN BAY PARK WEST TERMINAL GATE 2: The Seaview/Ocean Bay Park terminal is on the right side of Maple Ave. roughly 100 yards past the main terminal entrance.

Check LIRR schedules to Bay Shore: http://lirr42.mta.info/ The Bay Shore train terminal is an approximate 20 minute walk or 5 minute drive from the ferry terminal at 108 Maple Avenue, Bay Shore, NY 11706: https://goo.gl/maps/6KYzpanJmwm

During prime summer months, David Brother's Car Service will be waiting at the train station to take people to the ferry ($5-$10 Cash): http://davidbroscarservice.com/