From the YMCA website:
Enjoy fun and relaxing active family time by visiting your local Y on Saturday, April 17 for YMCA Healthy Kids® Day...YMCA Healthy Kids Day events are free and open to all.
YMCA Healthy Kids Day will be celebrated across the country at more than 1,700 YMCAs. [Click here to see if a YMCA in your area is hosting an event. Please be aware, not all YMCAs hold their events on April 17]. Last year, more than 700,000 people participated in YMCA Healthy Kids Day events nationwide, enjoying games, demonstrations, arts and crafts, educational resources, healthy treats, giveaways and more.
(Thanks, The Freebie Blogger)