Question: 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?
Sentence (from "Frisian Islands"): The Frisian Islands, also known as the Wadden Islands or Wadden Sea Islands, form an archipelago at the eastern edge of the North Sea in northwestern Europe, stretching from the northwest of the Netherlands through Germany to the west of Denmark.
Relevant evidence: No