Denmark

Svælget 2 cog
The maritime archaeologists excavated the ship at a depth of 13m in a shipping channel called Svælget, between Amager and Saltholm.

World’s Largest Cog Found off Copenhagen

Named Svælget 2 after the shipping channel just outside Copenhagen where it was found, the ship dates to the early 15th century and offers rare insight into the scale, ambition, and technical sophistication of northern European seafaring during the Middle Ages.

The wreck was located in 2021 during excavations related to Lynetteholm, an artificial peninsula currently under construction at the entrance to Copenhagen Harbour, Denmark, which will become a new urban district and act as a storm surge barrier. 

Denmark: M/F Ærøsund

Ærøsund wreck. Photo by Lars Stenholt Kirkegaard
Diver on Ærøsund on the day it was sunk. Photo by Lars Stenholt Kirkegaard

M/F Ærøsund is a former ferry that served the islands in the South Funen archipelago. It was scuttled in 2014 in a sheltered bay just 550m off Funen’s southern coastline where it now rests at a depth of only 19m. It is easily visible from the surface.

Denmark's Øresund & Isefjord

Anemone, Øresund, Denmark. Photo by Morten Bjørn Larsen
Anemone on Anemone Wreck, Øresund, Denmark. Photo by Morten Bjørn Larsen

Diving in Denmark, how does it really measure up? Since Morten Bjørn Larsen lives in Copenhagen, he talks about his favorite dives in and around the island of Zealand, where the capital city is located. Several wrecks in Øresund and a bridge in Isefjord top the list.

Copepods are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic.

Plankton doesn't eat microplastic

Finally, a bit of good news. Well, sort of. It is not good that plastic finds its way into our oceans and can be detected in just about every sample of water but at least it appears that microplastics do not accumulate in the aquatic food chain.