Summer is around the corner, and we can't wait for the onslaught of ice cream, rooftop bars and beach eats that it brings. But the proverbial lazy days don't have to be, well, lazy: Those warm-weather indulgences will taste all the sweeter after an ass-kicking from a killer workout. And while we'll happily help you hunt down the best gyms in the city, right now we're betting you'd rather be outside. Not to worry—these fitness classes offer a healthy dose of endorphins with a side of vitamin D.
RECOMMENDED: Find the best NYC fitness classes and gyms