What is this intertidal zone in the southeastern part of the North Sea whose mudflat region is shielded by The Frisian Islands from the North Sea?
Frisian Islands:  The islands shield the mudflat region of the Wadden Sea (large parts of which fall dry during low tide) from the North Sea. Wadden Sea: The Wadden Sea (Dutch: "Waddenzee" , German: "Wattenmeer" , Low German: "Wattensee" or "Waddenzee ", Danish: "Vadehavet" , , North Frisian: "di Heef" ) is an intertidal zone in the southeastern part of the North Sea.
Wadden Sea