Since one of the chief thrills of Olafur Eliasson's New York Waterfalls, to be turned off next Monday, is being able to view all four at once, I am jamming them all into one farewell post. In order of appearance as the Rockaway ferry approaches Pier 11, at the foot of Wall Street, are the Governors Island waterfall, to port, somewhat upstaged by the ventilation tower for the Brooklyn-Battery Tunnel. Then comes the waterfall off Red Hook, in Brooklyn, on the starboard side. Up ahead, also to starboard, is the most majestic of the waterfalls, under a pylon of the Brooklyn Bridge. (This was the only one there were complaints about: people in Brooklyn Heights said the salt water was ruining plants along the river.) You have to transfer to the East River ferry to get a good look at the fourth waterfall, to port, off Manhattan's Lower East Side.