Chittagong in 3 days: Patenga Beach (the Bay of Bengal mouth of the Karnaphuli River, the "kattumaram" sampan fishermen), the Bayazid Bostami Sufi shrine (the 450 sacred turtles in the most unusual religious animal sanctuary in South Asia), the old city Anderkilla colonial district (Portuguese fort 1528, Mughal mosque 1666), the Sitakunda ship-breaking yards (the most dramatic heavy industrial landscape in the world — where over 50% of the world's largest ships end their lives), Rangamati and the Chittagong Hill Tracts (the most beautiful and most indigenous-culturally-rich region of Bangladesh), Chakma village visit (500,000 Buddhist Tibeto-Burman people — the most important indigenous minority in Bangladesh) and kala bhuna farewell dinner (the most intensely spiced dry-fried beef — the most important Chittagong culinary signature).