Since 2000, British expedition teams shifted their focus to explore the caves around Mount Benarat. As a result, Whiterock cave (at Mount Api) was discovered in 2003. 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. Subsequent explorations were focused on unearthing more hidden passages in the Whiterock cave. In 2017, Whiterock Cave was measured to and Clearwater Cave was measured to .