Let's start the water cycle in the ocean, here we have a liquid phase. Water is heated until it evaporates. When it evaporates it changes its physical phase, from liquid to gas. Evaporated water rises and stabilizes in the atmosphere, where more evaporated water gathers until they assemble clouds. Clouds (water in gas form) travel with wind. When they enter regions with colder temperatures, water starts to condensate, that is, gas water from clouds, turns into liquid water as rain. Water falls as rain and recharges rivers, lakes and other freshwater bodies. Ultimately these freshwater bodies, find their way back to ocean or they connect to underground waters. Another important part of the water cycle corresponds to the water that goes to high latitudes (such as the north or south pole) or high altitudes, like mountain peaks. In this cases water turns to solid, it freezes and becomes ice. Some sites have perennial ice (that is, ancient ice). In many parts this water-ice dynamic is seasonal. Water freezes in the winter, and it is released back to the sea (for example in the poles) or to rivers (for example in mountains) when spring comes.