With its cool, thrilling climbs, the Mountaineer attracts world explorers among school-age children. The variety of challenging climbs and crawls via nets, tubes, and Jacob’s Ladder will make children return for more play again and again. The Jacob’s Ladder has a special feature in the twist of the 3rd step: this makes a change of foot position necessary to go further. The mastery of this proprioceptive action is only possible for children of a certain age. There are other ways to climb and the variation stimulates children’s balance and cross-coordination. These motor skills are important for children’s physical confidence and their security in moving, for instance in the street. The Mountaineer is a challenging, fun meeting point for active socializing with friends.