Papua New Guinea

Papua New Guinea keeps the third largest block of tropical rainforest in the world, after Amazonia and the Congo basin, and one of the greatest concentrations of species found nowhere else on the planet. Its central range exceeds four thousand metres and strings together lowland rainforest, cloud forest, alpine grassland and even small residual glaciers, while the lowlands of the Sepik and the Fly form immense wetlands. Sitting on the edge of the Coral Triangle, its reefs are among the richest in the world. The fauna is of Australian origin, with marsupials that climbed into the trees and became tree kangaroos, long-beaked echidnas and cassowaries, alongside the most spectacular bird family on the planet.