World Fish Migration Day
2026-05-30 14:00 - 16:00 UTC | Water’s Edge Garden
Join Randall’s Island Park Alliance to seine for fish in the Harlem River in celebration of World Fish Migration Day, part of the Columbia Climate School Lamont-Doherty Earth Observatory’s Lower Hudson & Harbor Fish Count! Grab a pair of waders and help us as we drag a 30-foot-long seining net along the shore of the Harlem River and discover the amazing biodiversity found in our waterways. Learn about the many different species of fish found in the river and help us in the fish monitoring process by counting and measuring fish we capture in the net. All fish will then be released back into the river. All equipment is provided, wear clothes you don’t mind getting wet! You must be 12 years or older to seine, but all are welcome to come and observe!
Location: Rock Dock along Water’s Edge Garden
For inquiries about accessibility, to request an accommodation or for event information, please email publicprograms@randallsisland.org.

World Oceans Day
2025-06-07 12:00 - 15:00
Join RIPA’s Natural Areas team for a fun-filled and educational afternoon exploring the unique organisms that call the greater NYC Harbor Estuary home.
Drop-in to observe the team conduct seining in the Harlem River and assist in counting and ID’ing fish and other aquatic organisms. Engage with our knowledgeable staff and learn more about these amazing creatures at a table display along the Water’s Edge Garden Path.
No registration required! This event is open to the public!
Location: Water’s Edge Garden Beach
For inquiries about accessibility, to request an accommodation, or for event information, please email publicprograms@randallsisland.org.

World Fish Migration Day
2024-06-01 11:00 - 14:00
Join the Randall’s Island Park Alliance’s Natural Areas team as they seine for fish in the Harlem River to celebrate World Fish Migration Day! Learn about the many different species of fish found in the river and help us in the fish monitoring process by counting and measuring fish we capture in the net. All fish will then be released back into the river. Swing by any time between 11 AM and 2 PM on June 1 to experience the event.
Location: Rock Dock along the Water’s Edge Garden
For inquiries about the event please email naturalareas@randallsisland.org
For inquiries about accessibility, to request an accommodation, or for event information, please email publicprograms@randallsisland.org.
