Welcome to Greenwood Lake Marina. If you’re looking for a new boat, used boat or any help with boating at all, be sure and stop at Greenwood Lake Marina (located on the New York/New Jersey border). Greenwood Lake Marina is the largest marina on the lake and has been in business for over 30 years. The marina stocks a full line of new Starcraft Boats and Avalon Pontoon Boats as well as quality used boats. The marina also offers a full line of electric powered pontoon boats using either Ray Electric, Torqeeto and/or Minnkota Electric Motors for all those lakes that have power restrictions.