Cumberland Caverns is in the process of adding new attractions which will result in more jobs.Tennessee’s largest show cave is looking to add a zipline, guided four-wheeler trail, and an access point for kayakers to enter the Collins River.When up and running, the new features are projected to add around 15 jobs.It’s all part of Adventure Tourism legislation which officials at Cumberland Caverns are looking to capitalize on. Members of the Warren County Commission have voted to pass Resolution No. 33-2013 to establish Cumberland Caverns as an Adventure Tourism District.