Pakistan Karakoram, Hindu Kush, and Pamir mountain ranges (see mountains of Pakistan), which contain some of the world's highest peaks, including five of the fourteen eight-thousanders (mountain peaks over ), which attract adventurers and mountaineers from all over the world, notably K2 () and Nanga Parbat (). The Balochistan Plateau lies in the west and the Thar Desert in the east. The Indus River and its tributaries flow through the country from the Kashmir region to the Arabian Sea. There is an expanse of alluvial plains along it in the Punjab and Sindh. The climate varies from tropical to temperate, with
Central Karakoram National Park big sheer rock walls, and trek. Most expeditions visit the region in July and August, but some come as early as May and June, and September can be good for lower altitude climbing. One celebrated climbing area is Trango Towers, a group of some of the world tallest rock towers, situated in the park close to the route used to trek to the K2 base camp. Every year, a number of expeditions from all parts of the world visit the area to climb these most challenging granite towers. Central Karakoram National Park Central Karakoram National Park () is a national