- Welcome to the Web Site of Swing Dance Long Island. A not for profit organization dedicated to the promotion of swing dancing on Long Island, New York. This site is best viewed at 600 x 800 monitor resolution. 24-hour hotline: (631) 821-9883 Swing Dance Long Island, Inc., P.O. Box 508, Centereach, NY 11720 We would like to thank the Crescent City Maulers for their generosity and permission for ...www.sdli.org