One natural & most dangerous thing is to cross the rivers in Shimshal valley by perilous aerial runways, alone among the powerful elements(cable bridges) but its all a great fun..These are made by local people with local resources & area used to carry people & luggage..
Shimshal is a farming and herding community of some 1100 inhabitants, situated at the north-eastern extreme of both the former principality of Hunza (now part of Gilgit Administrative District), and the modern state of Pakistan. Most settlement occupies the upper portion of a valley of the same name, which descends west into the Hunza River valley at Pasu, and which separates the Ghujerab and Hispar Mustagh ranges of the Karakoram mountain system.The villages are situated on a series of glacial and alluvial deposits that form a broad strip between the river's floodplain and steep mountain slopes to the south. These deposits have been terraced for several hundred years. They are irrigated by the meltwater nalas which currently dissect them. In addition, the lowest terraces are irrigated from the river itself. The cultivated area, covering about 250 hectares, lies between 3000 and 3300 metres above sea level, at the upper limits of single crop cultivation. People grow hardy cereals (wheat and barley), potatoes, peas and beans, apricots and apples. Small quantities of garden vegetables are also grown by some households. These are one of the few communities remaining in Pakistan's Northern Areas that grows enough agricultural produce to feed itself.
Shimshal Valley is one of the remotest valleys of the Hunza Valley. It was supposed to be a place of exile for theives and dacoits in the earlier times (something like Siberia and Australia) but it is no less beautiful. The jeep track just leaves the KKH just north of Passu for Shimsal which is one of the most wonderful places in Hunza. No thieves or dacoits now! You can also take the much more interesting hiking route to Shimsal. Porters are easily available.