The Indus Dolphin is a unique river cetacean that only occurs in Pakistan and one of most endangered Cetacean species of the world. Most dolphins and whales are found only in the sea, but the Indus River dolphin survives only in freshwater. Other river dolphin species occur in the Yangtze River in China, the Amazon & Orinoco in South America and the Ganges, Brahmaputra and Meghna River System in India, Bangladesh and Nepal. Historically the dolphins existed from the Indus estuary up into the foothills of the Himalayas at Attock. They were also found in all major Indus tributaries, including upstream in the River Ravi. Since the construction of the Indus irrigation system, the dolphins have declined dramatically. Now they remain only in a short stretch of the main Indus River in small populations, which have been separated by impassable irrigation weirs or barrages across the Indus River. The Adventure Foundation Pakistan (AFP) has initiated a community based project to organize dolphin boat safaris from Taunsa Barrage.