The other day I noticed a funny wave pattern on Kiel fjord. Unfortunately I only took a picture where you see what caused the wave pattern:
A step that was just at water level and got flooded with every wave crest and surfaced at every trough. See also in the movie below:
More funny waves | Mirjam S. Glessmer says:
[…] funny waves and it looked like there was water dripping in, and I went without looking “no, there is a step right there that’s causing […]