BRIO World 33481 Adventure Tunnel Toy Train Accessory for Kids Age Brio Adventure Tunnel Happy Monkey Shop Brio World Adventure Tunnel Kaufen auf Ricardo BRIO World Adventure Tunnel Brio Crane and Mountain Tunnel. Description: Take a shortcut through this exciting tunnel. It has four different sounds that activate when the train passes through and onto new adventures. Your little one will enjoy using their imagination while playing with the BRIO World 33481 Adventure Tunnel from the popular Swedish brand, BRIO. Stimulates development. Encourages creativity and imagination. Makes a sound when a train passes through it. Bridge at the top can be dissembled using the button. Fits perfectly with other BRIO World sets.