As children transition from crawling to walking, they begin looking for new ways to explore their surroundings. Their play style changes as their mobility improves and a play system needs to respond to their needs. Crawler Three is a linear play system that provides the right mix of play events and age-appropriate challenges to help beginning walkers gain confidence and have fun. Children can enter the system by walking or crawling up the "fish tail" ramp at one end or through the crawl tube at the other. Once inside the system, there are "bubble panel" windows to look through, a crawl tube connecting platforms and plenty of grip/grasp areas to help young walkers move through the system.