A street party/DJ sound system built out of a shipping container. A little slab of hungover berlin/pregaming Berlin in Brooklyn. Whomever the great DJs in town are you will find them playing a low-key set here for a crowd of less than 50 people. Sunset is magic as there's a straight shot through to Manhattan and the light is perfection.
My second-favorite outdoor-place in Manhattan. The abandoned 1.6 km rail tracks running above Chelsea down to the Meatpacking district were turned into an above-ground park. Perfectly nice place for sitting in the sun, reading, relaxing, having lunch in some green spot in the city. Nice views at the Hudson River, New Jersey, the Statue of Liberty (little small from there but still visible) and the architecture around Chelsea.
Death & Co is my favorite place for delicious cocktails and small bites. Their truffle mac and cheese and lobster rolls are delicious and love just about every drink on their whisky menu.