Harlem Meer and the Charles A. Dana Discovery Center building that sits on the site of the 1940s boathouse, which was torn down in the 1990s. Buildings on West 110th Street in the background. Photo taken by me July 16, 2015.

Here's a photo of the original New Deal boathouse designed by Aymur Embury II and completed in 1943:

And here's a photo of the abandoned and burnt-out 1943 boathouse in the 1970s, found on the Forgotten New York website: