Surface water pollution includes pollution of rivers, lakes and oceans. Lake Michigan is one of the five Great Lakes of North America. Lake Texcoco was the largest of five interconnected lakes. Lake Ontario is one of the five Great Lakes of North America. There are many small lakes and rivers. It also has 64,980 inland lakes and ponds. Lake Kivu is one of the African Great Lakes. Bishgiri Lake is one of the highest lakes in Pakistan. Canoeing, kayaking, rowing and sailing in rivers, lakes, and ocean are allowed. There are many lakes and coastal lagoons. Rusalkas are said to inhabit lakes and rivers. Loons nest during the summer on freshwater lakes and/or large ponds. They also occur on the edges of large lakes and rivers. Arabia has few lakes or permanent rivers. Benevolent njuzu are thought to reside in peaceful lakes or rivers.