The lake Goksjø measures Шаблон:Convert from north to south and it has a circumference of about Шаблон:Convert. At its deepest, Goksjø is no deeper than Шаблон:Convert. Goksjø sits at an elevation of Шаблон:Convert above sea level. It is the largest lake in Sandefjord, and the third-largest in Vestfold County.[1][2]
The lake is surrounded by rural agricultural lands, and flooding occurs on a regular basis. The lake is used for ice-skating, canoeing, swimming, fishing, and other recreational activities. Fish species found here include Northern pike, European perch, Ide, Common dace, European eel, Salmon and Brown trout.[3]
The rivers Storelv and Skorgeelva (the two most important inlets) both flow into the northern part of the lake. The river Hagneselva is the only outlet on the lake and it is located on the northwestern part of the lake. The river flows out of the lake and later joins the lake Åsrumvannet and then it eventually flows into the river Numedalslågen. The lake's most important inlet is the river Storelv, which flows from the lake Askimvannet in Andebu.[4]
The lake name comes from the Old Norse name Шаблон:Lang. The first element is derived from the old male name Шаблон:Lang which may have been corrupted to Gok over the centuries. The last element is Шаблон:Wikt-lang which means "sea" or "lake".