3/13/2022, young female harbor settling in just after hauling onto the rocks on a wickedly windy morning at Cupsogue. from CRESLI_ Inc. on Vimeo.
The Coastal Research and Education Society of Long Island, was founded in the summer of 1996 by a group of experts in marine mammal science, environmental sciences, education and conservation. CRESLI was formed for the purposes of conducting research, providing educational experiences and promoting conservation of coastal ecosystems. Research and education are inextricably linked in all CRESLI activities. As such, CRESLI actively seeks cooperative alliances with researchers, educational institutions, and the participation of the public. Our pinniped and cetacean research projects, for example, utilize public whale watch cruises and seal walks as platforms for collecting data and educating the public at the same time.
We are committed to our mission and have been since 1996. Join us on any of our excursions, lectures, activities to learn about our coastal waters and the ecosystems therein. Come out on trips to see the amazing diversity of marine mammals, sea turtles, pelagic birds, and other marine life. Become a member and/or a volunteer and join us in our work.
Over 30,500 seal encounters at Cupsogue Beach since 2006. Join us at Cupsogue Beach for our 18th year, to observe, photograph, and learn about Long Island's seals. The walks suitable for children and are approximately 1.2 miles round trip and take about 1 to 1.5 hours.
NEW for 2023 CRESLI has scheduled 3 seal cruises on Shinnecock Bay, NY, using the R/V PECONIC at the Stony Brook University Marine Science Center in Southampton, NY. Go to our Seal Cruise page for more information.
Here's a slideshow of the best of our 2022 Seal Walk season
Travel with us from Montauk to near and offshore waters in search of whales, dolphins, porpoises, sea turtles, pelagic birds, and more.
Join the crew with over 30 years of whale watching experience. Come away with great memories, great photos and videos, and an education about whales, dolphins, sea turtles, and marine life that is second-to-none.
2022 CRESLI/Viking Fleet whale watching began July 3, 2022. We will sail Wednesdays and Sundays from 2-7 PM through early September
Latest whale watch information.
CRESLI is a nonprofit organization as defined in section 501 (c) (3) of the Internal Revenue Code. All Contributions are deductible to the fullest extent of the law. A copy of the last financial report filed with the Department of State may be obtained by writing to NYS Dept. of State, Office of Charities Registration, Albany, NY 12231.
CRESLI does not discriminate on the basis of race, color, religion, sex, sexual orientation, national, or ethnic origin.
We at CRESLI wish to recognize indigenous peoples and tribes who were the original stewards of the coastal areas in which we work. The Coastal Research & Education Society of Long Island research and work take place primarily on the land and waters of the Unkechaug (Cupsogue Beach), Shinnecock (Shinnecock Bay), Montaukett (Montauk), and Secatogue (West Sayville). View a map of the indigenous communities.
CRESLI Seal walk at Cupsogue Beach
Saturday, December 3, 2022
Read More Now!
8:15 AM to 9:45 AM
CRESLI 2022-2023 Seal Walks and Cruises