After you get off the Ferry You go to the Bus Ramps that are located in the main terminal look for Bus #S40 to Snug Harbor road.it is 11 bus stops from the ferry.
We walked there and took bus on the way back
S40 bus
MTA bus s40
What maria said, you can take the s40 or another bus I can't remember. But you can Google
Thanks! Your answer is awaiting moderation.