Our most recent three day expedition gave our divers the chance to “fill in the gaps” and experience the things a diving day tour to Silfra would miss.
Silfra is well known for its unique visibility and almost invisible water. The first site on our tour of gave us the exact opposite. The brackish water ravine known as Bjarnagjá offers an interesting contrast with both marine and freshwater life. In the depths we find a range of crabs, anemones, eel and even cod species while the freshwater shallows offer schools of stickleback. These two environments are separated by a fuzzy mixing layer known as a halocline.
The walls of this site are lined in a thick green algae. As divers explore the depths and interesting marine life in this fissure their exhaled bubbles lift and suspend algae in the water column above them. While ascending divers find themselves surrounded by this otherworldly green alien snow.
Despite its small size the interesting topography, life, and visibility offered at this site often make it a favorite. It doesn’t hurt that Bjarnagjá is year-round toasty 10 degrees Celsius!