12:00 pm–3:00 pm
Cathedral Church of St. John the Divine (1047 Amsterdam Avenue at West 112th Street)
$8, $75/10 sessions, free for adults and babies under 6 months
This indoor gym for children 5 and under has slides, balls and large colorful mats for crawling. Before or after playing look for peacocks and visit the charming sculptures in the Cathedral’s Children’s Garden, or wander around the majestic Cathedral.