The Miami Children's Museum debuts "MiChiMu's Summer Games," an interactive exhibit. The Summer Games exhibit offers innovative and interactive components focusing on teamwork, fitness and healthy lifestyles, while spotlighting different nations from around the world for children to be a part of. Through Sept. 3. Miami Children's Museum, 980 MacArthur Causeway, Watson Island. Free for children under one and museum members. $12 Florida Residents. $15 others. Details: (305) 373-5437 or www.miamichildrensmuseum.org.