I attached a couple of pdf's with 1) a list of
marinas in the
NYC area and 2) some suggestions for
Long Island Sound and Buzzards Bay. I don't know of a good cruising guide for the area. The
Hudson River is interesting to travel up to the George
Washington Bridge (still below the top of Manhattan Island), but not a very pleasant place to stay. The 79th St
Boat Basin is completely closed for major renovations, in case you see any recommendations.