The swanky Plunge bar atop the Hotel Gansevoort is the perfect place to sip a mouth-watering martini while gazing out over the Hudson River.

During the colder months, the bar is covered by a glass structure, but come summertime, it's an open air paradise.

Patrons also have views of the beautiful pool, though it is reserved for hotel guests only.

Plunge is located at 18th 9th Ave.