After lunch, everyone except Mike went for a walk on one of the new trails. We traversed the high coastal sand dunes to a lookout tower. The southwest face of the islands is lined with high, wide sand dunes, which protect the island from southerly storms. The north side of the island is sheltered by the dike. The island is a mass experiment. There are many scientific studies happening within the Marker Wadden. One study is assessing various types of fine sediment for use in (is)land construction (shout out to Maria!). According to the "forest rangers," the island was constructed almost entirely with material sourced in the Markermeer. This collected some of the fine sediment trapped in the lake, which is a main cause of the water quality issues. Another challenge is to create a vibrant wetland in a lake with no tides. I am not so familiar with Dutch wetland species, especially not in freshwater, but I did not recognize many of the pioneering wetland plants on the island.
Duration: 10:30 - 16:00, including a lunch and walk break on the island
Weather: 20C, moderate wind from the northeast