Peru is divided into the Central Coast, which houses the capital Lima, the Southern Coast which is known for its sand dunes and greenery, the Northern Coast which holds a lot of beaches for relaxation, the Southern Sierra which has a lot of mountains and valleys, Central Sierra, known for quirky and charmingly traditional old towns and Northern Sierra which is the Andean region. The other secondary regions include Altiplano, San Martin, Peruvian Amazon and Madre de Dios.