The Annapurna Region in central Nepal is the most geographically and culturally diverse region for trekking. Over 2,500 trekkers visit the Annapurna Sanctuary region yearly. The Annapurna Conservation Area Project (ACAP) working along with the National Trust for Nature Conservation (NTNC) has declared this region as area of conservation and sustainable development. Stretched over 2600 sq. km., the area boasts of a variety of diverse cultures, tribes and castes as the Brahmins, Chettris, Newars, Gurungs, Magars, Manangis and the Tibetans. This area has sub-tropical lowlands, valleys, bamboo, oak and rhododendron forests, alpine meadows, windswept desert plateaus and the towering Annapurna Mountains. This area has the world’s deepest river gorge, Kali Gandaki, lying some 6900-metres/22,563 ft. below some of the world’s largest and most beautiful mountains as the Annapurna I (world’s 8th highest) & Fishtail (one of the most beautiful).