Rhine delta
Fußach, Austria · built 1976
The Rhine Delta of Lake Constance is the river delta on the south-eastern shore of Lake Constance, which the Rhine (also called Alpine Rhine (Alpenrhein)) has formed in a former sea area. It lies mostly in the Austrian province of Vorarlberg, smaller areas are in the Swiss canton of St. Gallen. The two peninsulas in the lake are called Rheinspitz (west) and Rohrspitz (east).
NatureReserve data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).