Music classes at Cantigny are a treasure within a treasure. Weather permitting, classes are held outdoors in Fall, Spring (in the Rock Garden) & Summer (under the Museum Pavillion) and offer a perfect outing for families. Parking is free for registered families. Many stay for a picnic or family time exploring the playground, tanks, museum and gardens. If rainy or below 40 degrees, classes are moved inside (main Visitor's Center lounge).