Larvik the river Numedalslågen, locally called "Lågen", which terminates in Larvik, east of the town. Other bodies of water include the lakes Farris, Goksjø and Hallevatnet. Larvik is also noted for its natural springs of mineral water, "Farriskildene", which have been commercially exploited under the brand name "Farris". At Kaupang in Tjølling lies the remains of the medieval Skiringssal trading outpost. Larvik is also home to the world's northernmost natural occurrence of "Fagus sylvatica" forests (European Beech tree), known as "Bøkeskogen" ("The Birch Tree Forest"). Larvik Municipality is home to one city and 7 villages: Himberg is an exclave which is
Luzula sylvatica grow on acidic soils in damp habitats. "L. sylvatica" can be found on stream banks and well-drained, open woodland, as well as in open ground and rock ledges and peaty heath moors. Despite its preference for acidic soils, it can tolerate most soil pH levels. The leaves of "Luzula sylvatica" are picked in winter by golden eagles to line their eyries. The flowers and seeds of "L. sylvatica" are also the sole food source for the larvae of the "Coleophora sylvaticella" moth. "Luzula sylvatica" is commonly used in horticulture — its thick, patch-forming habit (which allows the plant to act