On the deck of a retired oil tanker parked in the waters of Red Hook, Carolina Salguero runs a series of cultural gatherings days each summer.

Every other Saturday, for $75, architecture lovers can get a nearly three-hour boat tour that encircles Manhattan, with expert guides.Architecture lovers can now get a singular perspective on Manhattan’s waterfront by making a complete loop around the island on a wooden yacht.

Immigration officials, who can board foreign-flagged vessels at any time, detained two illegal immigrants after stopping a yacht on July 4.

A 30-foot boat struck a 19-footer in New York Harbor, splitting the smaller craft in two, the police said.

The Offshore Sailing School is one of several companies in the New York area that offer sailing programs for families.

As the wealthy slowly resume buying, business creeps back for yacht rental companies, jet brokers, jewelry stores and other purveyors of luxury goods.

To support their work in the cities waterways, the N.Y.P.D. and the N.Y.F.D are both soon acquiring sleek new vessels.

The Navy’s newest ship, with steel from the wreckage of the World Trade Center forged into its bow, arrives in New York on Monday.

The newest vessel is the seventh to bear the name, and some hope that a connection to the Sept. 11 terrorist attacks will make the legacy of this one more memorable.

The U.S.S. New York, whose bow includes steel recycled from the World Trade Center, began its journey to New York City from Norfolk, Va.