https://visdeurbel.nl/en/the-fish-doorbell/
Quote:
Every spring fish migrate upstream, in search of places to spawn. They swim through the centre of the city of Utrecht. Unfortunatly, the boat lock is closed during spring. You can help the fish.
This is silly fun. I've seen some fish and have rung the doorbell for them.
And they post the best pics, too. Underwater game can, basically.
https://visdeurbel.nl/en/nicest-photos/?