Join us for Open Air Fitness every Sunday in Downtown Burlington — free of charge. Something different every week. All you need to bring is a mat & a water bottle! When: Sundays 10 am – 11 am, June 5 – September 25 Where: Brock Park, 450 Nelson Avenue Fit in the Core is back for its TENTH SEASON! Our wildly popular free outdoor fitness classes are returning every Sunday beginning  Sunday, June 5th, outside of the Art Gallery of…