Jenolan Caves, on the fringe of Kanangra Boyd National Park, form the most famous cave system in the state. Visitor facilities such as lighting, paths and bridges have been incorporated in many of its tunnels and chambers, but there are also numerous adventure caves. However, these, like others in the state can only be entered with a permit. Serious cavers as well as curious tourists also flock to Wombeyan Caves near Mittagong. Other adventure-caving destinations include Bungonia near Goulburn, Wee Jasper near Yass, and Yarrangobilly in the Snowy Mountains.