Coastal view from cabana at the Ecohabs lodging facility within Tayrona National Park, on the Caribbean Sea coast of northern Colombia. The park extends from the coastal mountain range of the Sierra Nevada de Santa Marta, to the Caribbean Sea. Tayrona National Park contains one of the most beautiful and wild equatorial rain forests in northern South America. The Conservancy has been working in the Sierra Nevada de Santa Marta with the Colombian National Parks Agency to develop and implement an ecological assessment to determine the most important places to conserve both within and surrounding the park. © Bridget Besaw At 18,942 feet, the Sierra Nevada de Santa Marta is the world's tallest coastal mountain.