Underneath the George Washington Bridge in at Fort Washington Point in Fort Washington Park at West 179th Street. The Park continues to the north from here but is mostly wild and undeveloped, except for Fort Tryon Park and the Cloisters. Then at Dyckman Street there is the second New Deal boat basin, La Marina, and north of it a continuation of the park with ball fields and game courts west of the railroad tracks and Inwood Hill Park east of them, and that brings us to the tippy-top of Manhattan Island and the end of the West Side Improvement. Except for the Henry Hudson Bridge and the continuation of the Henry Hudson Parkway to the Bronx-Yonkers boundary, but that's another story.