Natural ecosystems are heavily dependent on water, as it is essential to the development of life. The ecology and landscape play an important role in the quality and availability of water. It is no coincidence that exceptional hydrological phenomena are found in protected areas. Such is the case with, for example, the geothermic occurrences (principally, geysers) in America's Yellowstone National Park, the oldest park in the world. The Ramsar wetlands (where the ecosystem's dependency on water is strongly evident), The Iguacu Falls (on the border of Argentina and Brazil), or the Zapata Swamp...