Take a listen.

According to
TM Soft’s White Noise Sleep Sounds: 

Despite the name New York City’s East River isn’t really a river but rather a
‘tidal estuary’. It separates Queens and Manhattan and was once known as the
Sound river because of its connection to the Long Island Sound. Waves lap
against a rocky shoreline on Roosevelt Island while barges drift past and
traffic emanates from across the river


Source link