14th Street Park, Tenth Ave between 14th and 15th Sts. Subway: A, C, E to 14th St; L to Eighth Ave. Be prepared to sweat during your sun salutations: Laughing Lotus, the popular studio that puts on these hour-long classes in the park, is known for guiding a quick-moving flow of poses. With approximately 20 students per class, the instructor can help you if your downward dog looks like it could use an adjustment. Participants should bring their own mats; classes are contingent on weather, so call ahead before setting out.