"The trail does end at the Triboro Bridge, and as of late, does have the funding to extend north to the Bronx. (The Fulton Fish Market way south has moved so bicycling through their parking lots near the South Street Seaport is much easier).

This link
http://www.nycgovparks.org/sub_newsroom/press_releases/press_releases.php?id=19835

details the soon-to-be reopened High Bridge, the oldest bridge in NYC, built in 1841 to bicycles, wheelchairs and pedestrians. The entire bridge will be rehabbed along with parks and access on both sides. Further funding of $2.6 million will expand the trail by the Harlem River north to the Bronx."

"The Hudson River Greenway on the west side of Manhattan connects to the East River Greenway through Battery Park. Unfortunately it's not clearly marked in the park but it does connect. The trail starts around the Staten Island Terminal and then turns into a very thin sidewalk with a huge jersey barrier blocking the sidewalk. There are others used as buffers. The one blocking the sidewalk has been there for months and it's taking the DOT orever to move it.

The trail then moves you through some fish markets on the docks and it smell kind of bad and the trail does seem to interfere with vehicles but only for a shortwhile. Then it continues on through the South Street Seaport.

Note: what this trail says on the main review has not really been updated unless the Parks Department hasn't been riding on it yet. The trail continues interrupted until 34th Street. There are some water spots that are deep and haven't been filled in and they pass a lot of parks and ballfields and past a great bandshell that you can traverse around if you choose.

You do go under the Manhattan and Brooklyn Bridges with spectacular views and especially many historical markers full of the past.

It ends abruptly at a fence around 33rd or 34th Street. It ends at a fence in front of you just after you pass a seafood restaurant and the pier runs out and the FDR begins. (I illegally jumped the barrier on my side with my bike and ran 30 feet to the back of the fence and was only able to go another 200 feet until the pier officially ran out.)

They are planning to do an off-street route from here to 63rd Street where the Greenway picks up. You have to pick up a 2003 NYC cycling map to see the on-street routes in the five boroughs as well as all the greenways.

The Greenway picks up around 63rd Street and continues until the Triborough Bridge entrance around 125th Street. Access is on 121st Street to get on the Greenway. That bridge is bike friendly as are all the East River bridges. From the Triborough Bridge there is also access on Randall and Ward Islands into Queens and the Bronx and it's very scenic and secluded. I've ridden that on their NYC Century Ride that happens every September (www.nyccentury.org).

The Greenway around Manhattan is about 90% complete. From 125th Street as per the cycling map it is expected to connect diagonally through Dyckman Street and then connect to the west side of Manhattan near the little red lighthouse under the George Washington Bridge. I'm guessing total mileage for both the Hudson River and the East River Greenways is about 25-30 miles.

But...as per the Spring Issue of Transportation Alternatives (T.A.) for 2003, they have a five borough map of completed and yet to be completed greenways. From 125th Street and up on the map it appears to go up to the tip of Manhattan past the Broadway Bridge near Spuyten Duyvil and back to the GW Bridge."