Síclovía The YMCA of Greater San Antonio is proud to announce the 21st Síclovía event, happening from 9 am-1 pm on Sunday, May 7, celebrating National Ride a Bike Day. Síclovía is a free event that temporarily closes city streets to provide residents with a safe space to exercise, explore and play. The event encourages residents to get out and active through car-free streets. This Spring, the presenting sponsor is H-E-B; the lead sponsors are the City of San Antonio and Metro Health. Attendees can expect free exercise classes, live music, bike repair tents, and more along the route.