So named because of the resemblance to the majestic mainland mountain range that runs the length of Papua New Guinea, the undulating scenery of outcrops and troughs provide many interesting nooks and crannies for you to explore.
Tawny sharks are a common sight snoozing under coral overhangs.
At night Spanish Dancers, huge red nudibranchs, can be found slithering across the corals and sponges. A drift dive, you will be surrounded by swirls of barracuda, jacks and tuna. The sandy floor of this channel is covered with huge sea fans that find the 1-2 knot current an ideal medium in which to feed. In the centre of the passage is a wonderful coral bommie festooned with soft corals and sea fans, and sweetlips and snapper can be found relaxing in the lee of the bommie. The reef structure to the side of the bommie is covered in wonderful soft corals and acroporas, home to fluttering schools of anthias.