In 2005, Whiterock cave was linked to Clearwater cave system, thus extending the Clearwater system to 129.4 km. Api Chamber was also discovered in the same expedition.[12] Subsequent explorations were focused on unearthing more hidden passages in the Whiterock cave. In 2017, Whiterock Cave was measured to 100 km (330,000 ft) and Clearwater Cave was measured to 226.3 km (742,000 ft).[2]