I do not know if the ferry is up and running. The area is easy to get to by subway. Just take the L train to Bedford Ave, walk to N6th Street, and then head towards the river. And yeah, it is a great place for foodies.
As to what else there is to see, it depends on what you want to do. I was there last week with someone who was into clothing and Beacons Closet, a huge vintage clothing store was the big hit. As for me, it is more of a vibe sort of thing. This is just a good area to walk around. Lots of small independent stores. Lots of interesting looking people. Tons of good restaurants and bars. One of my fave places in the area is tiny Grand Ferry Park at the foot of Grand Street.
Do not think of WBurg in terms of tourist sites, other than the Brooklyn Brewery and Peter Lugars there are few landmarks. It is the area itself that is the attraction.