Dilworth Park is back with its free workout classes in front of the glorious City Hall. Head here for boot camp and yoga every week. The full calendar is right here. Post-class run through the plaza's fountain like a little kid or grab a drink or bite from one of the cafes nearby.

Head to the foot of the Ben Franklin Bridge and do sun salutations along the Delaware River waterfront weekdays at 7 a.m. and weekends at 9:30a.m. Aetna is the sponsor and they’ll be offering twilight yoga at 8:30 p.m. once a month.

Every Wednesday night you can do yoga in the Philadelphia Museum of Art as part of the weekly pay-what-you-want after-hours program. All you have to do is bring your own mat. Class runs from 6 to 7 p.m.

The fifth season of Yoga on the Banks is back, with pay-what-you-wish classes taking place every Saturday, Sunday, Tuesday, and Thursday (weather permitting, of course). You'll down dog while looking at Philly's skyline behind you and stare out toward the Schuylkill Banks Boardwalk and the river in front.

Wind down with gentle yoga and meditation classes in the country's oldest botanical garden along the west banks of the Schuylkill River. Classes start at 10:30 a.m. and run every Friday through the beginning of September.

The Morris Arboretum, listed on the National Register of Historic Places, begins a series of daytime and nighttime yoga classes in the spring, and continue to run through the summer. All classes are held outside (weather permitting).

Follow around the Parks on Tap for some free, outdoor yoga this summer. The classes are held by Roots2Rise, and pop up at 6 p.m. Thursdays wherever Parks on Tap are being held that week. Today it’s Burholme Parks, followed by Pastorius Park next week. Check out the full schedule here. It’s free, but if you do choose to donate, you’ll get a free drink ticket.