Crane & Mountain TunnelEvery corner of the Crane & Mountain Tunnel offers something new to discover! Ages: 3+ Lift the crane and top of the mountain off and place it on the track for dual functionality. In addition to the multistory railway passage and the majestic crane on top, four different sounds activate when the train is passing through the mountain. This is a treasure trove of playful function and design you might even find some gold! Stimulates development.