Nordlaguna

It is the second largest lake of Jan Mayen, after Sørlaguna, and is located in the central part of the island, near the bay of Stasjonsbukta.

[2] Before isolation from the ocean 220 calyr BP what is now the Nordlaguna basin was a marine bay for about 2200 years.

[3] This lake or lake-like period was preceded by at least 300–400 years of marine conditions.

[3] Its deepest part lie in the southeast reaching 36 m below sea level.

[3] The lake hosts an isolated population of Arctic char.