From the wildlife angle, Chile in Southern South America stretches in a north-south direction, called the spine of South America, has terrestrial borders with Argentina and Peru, and has long coast line of 6,435 km (3,999 miles) on the South Pacific Ocean. The Atacama Desert is the most arid desert in the world. The Ojos del Salado, a crater lake which is the world's highest lake (at ) is located here.