Brio - See what you discover when you pass through the 33481 Adventure Tunnel. You can’t quite see through the darkness to work out what’s on the other side, but there’s only one way forward – straight through the middle!
Adventure awaits: The Adventure Tunnel has four "real world" sound effects that are automatically triggered when a train passes through it, creating fun and exciting play scenarios. You can also activate the sounds by pressing the button on top of the mountain. High upon the top of the mountain, a wobbly rope bridge awaits brave adventures to take the risk and walk across.