Contains an extensive and complex series of layers from the Saale, Eemian (both marine and freshwater deposits) and Weichselian.
The strata have been subjected to strong glacial tectonic disturbances from several Weichselian ice streams, but in particular from the Belt Sea Advance 17-18,000 years ago, whose ice margin was in the area at one point.
The cliff has never been subjected to thorough geological investigations, but the extensive layer sequence, the complicated glacial tectonic structures and its location in the westernmost part of the Archipelago make it an important research 'bridging site' between the geology of the Archipelago, Als and Southeast Jutland.
North of the cliff (around the ferry landing) is a large Holocene marine foreland dominated by the large beach lake/coastal lagoon, Bøjden Nor, surrounded by salt marshes.
Apart from an artificially maintained lagoon gap, the nor is cut off from the sea by a series of seawalls. The northern part of the marine foreland encloses a formerly independent moraine island, Kalvøre. Northeast of Kalvøre is a large cromoded formation.
Immediately east of Bøjden Cove is a prominent spring.
