Kinneret

The most-known fresh water lake in North-Eastern Israel, the biggest fresh-water reservoir in the whole country.
It is known from so many Biblical texts - especially the Gospels. It was the region from which Jesus came. Where he was preaching, where he sailed with his disciples. Things have changed much since but the lake is still the same, geology acts much slower than humans....
It was in Biblical times a source of well being with its abundant fish supply. The fish were caught, dry, salted and as a delicacy they were exported to many world-markets. They were highly prized in Rome and we know that fishermen constituted middle-class and were very respected. Some indication of it we may find in the names of first apostles. Simon is definitely Jewish name, Andrew was Greek. They were brothers. Naming one brother in Jewish tradition (they were observant Jews) and the other with a name taken from Greek indicates middle-class, well-educated and open for the world family.
Fish were also the source of wealth for little village of Magdala (the ruins of this ancient village are to be found few hundred meters (yards) from the present day village). It was where Maria Magdalena came from. She was - as would have said today - a sponsor of many activities and journeys of Jesus and His disciples. Possibly wealthy widow (wealth from fish industry) and NOT a prostitute as some claimed over the centuries - the name of the prostitute mentioned in the Gospel is never disclosed. Maria Maddalena's personal freedom and ability to journey on her own with disciples (and their families) is probably the result of her being old. As a widow she had control over her money (like no unmarried woman could have). Being old meant she was free to socialize with whoever she has chosen without fear of scandal. At a certain age  that was acceptable :)
Kinneret is filled with fresh water, but at its bottom there are salt water springs. Salt water is kept near the bottom by the pressure of fresh water above, but had the water in the lake drop too much it would have mixed with the salt one - the irreversible process that would have turned Kinneret once and for always into salt-lake. Thus the water level is strictly monitored on a daily basis and in a crisis situation the water is being added by planes to the lake (sometimes bought by Israel abroad). Fortunately this year's winter, snowy and rainy, has much improved the water level after 7 years of drought. It is still far from perfect but the threat of water mixing has decreased.