Vietnam is the easternmost country on the Indochina Peninsula of Southeast Asia. The country is bordered by Laos to the northwest, Cambodia to the southwest and the East Sea to the east. The s-shaped country is 1,650 kilometres from north to south, and is about 50 kilometres wide at its narrowest point. Its two biggest cities are the capital Hanoi in the north, and Ho Chi Minh City in the south. Other major cities are the ancient capital of Hue in central Vietnam, the coastal city of Danang, and Dalat in the central highlands. The country’s largest rivers are the Mekong River in the south, and the Red River in the north. The Mekong Delta covers an area of 39,000 square kilometres south of Ho Chi Minh and is known as a ‘biological treasure trove’.