Autumn is the time when dead seaweeds start to get stranded on the beach, just as dead leaves on the road. Pretty soon farmers will collect them and spread them on the fields. If you look at the path going downwards in the bottom right corner of the picture, you can get an idea of the level up to where the high tides come, as the path is still covered with seaweeds. We have a 13 meters difference between the lowest and the highest spring tides here.
