Lake Kinneret, called also Sea of Galilee, is located some 250km north from Beer-Sheva, in Jordan Valley. The only city located at the shore of the lake is Tiberias and all transportation from the center of the country is going there. From Beer-Sheva go to Tel-Aviv and from there to Tiberias. It may be worthwhile to take your bike with you, because the road around the lake is relatively accessible and leads to many interesting camping locations, in particular to pictured below Susita, an ancient Greek city located on a hill opposite to Tiberias.