My buddy with DPV.
An overview on clay boulders at the bottom of the lake.
Faint view of the sailboat wreck lying at 5-7 mtr depth. Seen from the surface.
A Microcystis colony. Cyanobacteria
Dutch waters are known for its bad visibility. Well in comparison with tropical waters thats true. 1-4 mtr is common. Yesterday I measured a #Secchi depth of 13,8 mtr. I could even see the wreck at 5-7 depth from the surface. There are still #Microcystis colonies present at 5°C. #cyanobacteria