Note:  This is an ONGOING EVENT on Tuesdays and Wednesdays.  You must –PRE-REGISTER to ensure a spot.  A free, all-levels hour of yoga on Bryant Park’s Upper Terrace, part of the park’s long-running summer wellness series presented by Halara, which runs from late May through mid-September. Instructors rotate weekly, drawing from top New York studios and several current and former Peloton instructors throughout the season. Bring your own mat and water, since the park doesn’t provide either. Registration through Eventbrite is recommended, as popular weeks fill up, though walk-ups are usually accommodated.