The park carries the name of the Isfjorden fjords, which is one of the largest fjords in Svalbard. On the northern section of this fjord lies a virgin coastal landscape that sustains considerable vegetation and wildlife.
During certain points in the year there is an inflow of warm, saline water into the Isfjorden, which results in the circulation of water layers that fosters plankton growth. This plankton bonanza sustains large number of crustaceans. The crustaceans attract fish like the capelin and polar cod, which in turn draw other sea birds and mammals.