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
Carex sylvatica Carex sylvatica Carex sylvatica is a species of sedge found in deciduous woodlands across Europe. It typically reaches tall, and has an inflorescence made up of 3–5 pendent female spikes and a single male spike. It is also used as a garden plant, and has been introduced to North America and New Zealand. "Carex sylvatica" "resembles a small "C. pendula"", growing to around tall, or up to in exceptional cases. Its rhizomes are very short, giving the plant a densely cespitose (tufted) form. The leaves are long, wide and thick, with 17–31 parallel veins. The leaves have a slight keel,