Laughing Lotus often holds rooftop classes- I’ve checked their website and this Monday’s class is sold out. Visit their site for more information
Printing House Fitness Club on Hudson in the West Village- starting in June, they offer rooftop yoga, rooftop abs, and rooftop aqua-circuit.
Every Wednesday evening on the Riverside Plaza at 66th & Hudson River, free outdoor yoga classes at 6:30 p.m. from June 11 to Sept. 24. Call (212) 408-0219. Bring your own mat!
Bryant Park has free yoga on the Upper Terrace- instructors provided by Lululemon Athletica- all level of yogis.
