The Sea of Galilee, also Kinneret, Lake of Gennesaret, Lake Tiberias is the largest freshwater lake in Israel.
Its main source is the Jordan River, which flows through it from north to south. The lake is deep in the Jordan Great Rift Valley, the valley caused by the separation of the African and Arabian Plates. Because of this, the area has earthquakes and, in the past, volcanic activity.
Due to its low-lying position in the rift valley, surrounded by hills, the sea can get sudden violent storms; as in the New Testament story about Jesus calming the storm.
A main feature of the lake seems to be that it is always changing. It is still famous, just as in New Testament times, for having plenty of fish, and in today's restaurants, "St. Peter's Fish" (tilapia) is very popular.