gedney channel/lower new york bay, 3.5 miles south of new dorp beach. remote 35 ft. conical, 3-story "spark plug" style light (1893) with keeper's quarters (approx. 1000 sf). interior lined in brick up to 3rd floor. on 0.72 acre submerged land. constructed of cast iron on concrete/cast iron caisson. markings: white upper/black. protective riprap and breakwater sheltering light's boat basin. accessible by boat only.