CAPTREE STATE PARK MARINA, Captree, NY – 1956 Captree State Park Marina opened on June 12, 1954 and in just a few years grew to be the largest party boat fleet on Long Island. From the early 1960s until the mid-1990s, Captree was home to some of the most beautiful wooden party boats ever built. These boats docked bow first and proudly displayed their fine furniture-like varnished woodwork.