Some 2,600 members of the Marine Corps, Navy and Coast Guard are finding their land legs Wednesday in the Big Apple, with the start of Fleet Week.

The Parade of Ships along the New York Harbor — which ran throughout the morning — kicked off the 31st annual citywide celebration. Service members stood at attention as they watched the ships, which were visible along the Hudson River from Battery Park to just south of the George Washington Bridge.

An 11-gun salute at Fort Hamilton in Brooklyn signaled the start of the festivities, which will run until Memorial Day. The ships will depart on Tuesday.

Four US Navy ships, three US Coast Guard cutters, four US Naval Academy Yard Patrol boats and a pair of Royal Canadian Navy vessels will be accessible to the public.

The ships include the USS New York, whose hull includes steel recovered from Ground Zero, and the USS Jason Dunham, named after the New York native who threw himself on a grenade to save his fellow Marines during the Iraq War, earning the Medal of Honor.

Throughout the week, ship tours will be held each day at the Intrepid Sea, Air and Space Museum — Pier 86, as well as Pier 88 in Manhattan from 8 a.m. to 5 p.m. Tours will be closed at Pier 88 on Sunday, and tours at the Brooklyn Cruise Terminal will only be available on Sunday and Monday,

Tours at the Intrepid will close by 3 p.m. Thursday for a private function.

Other events throughout the week include Navy Band concerts at the South Street Seaport, Washington Square Park, Union Square Park and the Military Island pedestrian plaza in Times Square.

Also at Military Island, spectators can catch Navy divers plunging into a dive tank Wednesday through Saturday from 10 a.m. through 5 p.m.

The Coast Guard will also hold search-and-rescue demonstrations at various locations.

A full schedule of events, as well as participating ships and units, is available on the official Fleet Week website.