^Shalina R. (31 October 2017). "Ministry exploring volcano tourism in Tawau". The Borneo Post. Archived from the original on 20 May 2019. Retrieved 2020-12-19. In Sabah, Tawau's Bombalai volcano is currently a dormant volcano and, since it estimated to have erupted thousands of years ago, it can be regarded as an ancient crater. Bombalai cinder cone is only a half-an-hour jungle walk from the entrance of Tawau Hills National Park.
^Lagatah Toyos (15 July 2018). "World's new tallest tree in Tawau Hills Park". Daily Express. Archived from the original on 20 May 2019. Retrieved 2020-12-19. There are three main peaks in the form of extinct volcanoes, which were last active about 27,000 years ago, namely Mt Magdalena, Mt Lucia and Mt Maria.
