I'm looking for a restaurant/place/beach on the North Sea, who can help?

Hi. I'm looking for a place on the North Sea coast. I don't know which direction it is. The place or beach has three or four letters and isn't that crowded. Rather secluded, and there's a restaurant right by the sea that's completely made of glass on the outside. So it's not a hotspot like Sahlenburg or Duhnen. I was there briefly a few years ago because the weather was really bad, and my memory isn't very good. Can anyone help me? Best regards and thanks in advance.