Mahopac Marina is a full service marina that is owned and operated since 1969 by the Melchner Family and located on beautiful Lake Mahopac in Putnam County New York. Here on the lake we provide boat slips, gas pumping and a full retail store. We also service our customers on all the surrounding lakes as well as the Hudson River and Long Island Sound. All repairs, service and storage is housed in our newly built maintenance shop and boat yard here in Mahopac.