Mulu Summit       The mountainous nature of Mulu sets the scene for one of nature’s most spectacular rainforest vistas. The mountains leap out of the surrounding plains rising vertically in places with sheer cliffs and exposed rock faces. Many visitors to Mulu are struck by the imposing nature of the park’s terrain when flying to it, particularly on a clear day when it is possible to fly over Gunung Api and view such formations as the Pinnacles. Upon seeing the park from the air, visitors are awed by its inaccessibility with steep mountain sides, plunging gorges and collapsed caves covered in an impenetrable sea of verdant rainforest. Most imposing of all is Gunung Mulu itself, which dominates the landscape. At 2,377 metres the sandstone massif of Gunung Mulu is Sarawak’s second highest peak and provides a contrast in geology with the limestone peaks to the north of Gunung Api and Gunung Benarat. The steep nature of the peaks and their considerable rise in altitude has resulted in a variety of vegetation types within the park encompassing lowland alluvial and Dipterocarp forest at low altitudes and montane forests at higher altitudes.