Visitors should have plenty of things to choose to do. For families, one of the options is for the children to play for a while, either with or without their parents' participation. Play provides an important opportunity for children to learn about themselves, their limitations and the world around them. Many people think of play as a physical activity, letting off steam and getting rid of surplus energy. This concept gave rise to many municipal play areas that used to be, and many still are, just collections of equipment for swinging, sliding and climbing. Children play in different ways at different ages. The different stages of play: functional play, constructive play, symbolic play, role play, rule games, and co-operative play. The play that children enjoy in the outdoors is much more likely to be with other members of the family; especially parents who wish to relax and enjoy themselves.