Our ultimate list of toddler classes, sing-alongs and open play times at indoor playgrounds was created specifically with the littles in mind! These designated "tot times" typically exclude older children to give toddlers and preschoolers the freedom to explore alongside kids their own age, without having to worry about getting underfoot of the big kids. Don't forget to check out kid-friendly libraries for more drop-in play opportunities, along with our list of non-library story times for even more toddler fun!