Bungee jumping is undoubtedly the most prominent sport in Queenstown, and it takes place from four of the world's most scenic bungee sites. Visitors can choose to throw themselves off a bridge or a gondola, or there are milder options that include cable swinging or the Bungee Rocket that shoots people into the air while strapped into a cage-like device on the end of a bungee cord. The first commercial bungee jump site in the world is on the historic Kawarau Suspension Bridge, situated 140 feet (43m) above the river, with viewing platforms for spectators. The urban option is Hackett's Ledge, situated at the top of the gondola, and it is open even at night. The second highest is the Pipeline Bungee, operating from a suspension bridge across Skippers Canyon on the site of the 1864 gold-sluicing pipeline. The engineering masterpiece is the highest bungee jump, and the world's first gondola jump, a pod suspended terrifyingly 440 feet (134m) above the riverbed, spanning a remote gorge. A glass-bottomed cable car takes the jumpers out to the gondola.