Metro Physical & Aquatic Therapy provides Free Silver Sneakers exercise classes on Fridays at the Atria in Roslyn Harbor. The classes are free and fully sponsored by the non-profit organization: Healthways. Classes will be held on all levels: balance, agility, strengthening, endurance, and osteoporosis for eligible seniors. Call 516-745-8050 and ask for Sherrie Glasser for details, including class times and eligibility.