The Baliem Valley was once dubbed Shangri La and it is easy to see why. The Valley is incredibly lush and fertile and is surrounded on all sides by towering peaks of 2,500 to 3,000 metres. The fertility is such that the valley has been farmed for 9,000 years but it was only discovered by westerners in 1938! There are three mains tribes inhabiting the Baliem Valley: The Dani in the base, the Lani to the west and the Yali in the south-east. Each tribe has a distinct culture. One sure and interesting way to distinguish between the tribes is from the Koteka, or penis gourd, sported by the male members. The men of each tribe tend to the growing of the gourds with the three tribes each cultivating a different style. The Dani use a long, thin Koteka, the Lani sport a medium sized, wide cannon-like gourd, and the Yali wear the longest of all.