Water in the world of Urndhyn comes from the lakes of the world. Lakes produce water and fill naturally on their own, streams that offshoot from them lead to the ocean where the water is collected. Water is warm when it comes into a lake and as such most lakes in the world are heated, there are a few that keep enough heat to become hot springs, such as the one in Kiris Dahn. At the equator of the world the ocean becomes filled with whirl pools, treacherous currents, and unpredictable oceanic activities. No one sails the equator.