The inner German border as it ends in the Baltic Sea

I've been searching for this picture
I've been searching for this picture. Not this exact one, but one of the border where it meets the Baltic Sea. My mom was an American student studying German, and she went abroad to Germany for a few months (in 1984 or 85 I believe, probably around the same time as this picture). The most interesting story she told me was about when she spent a few weeks in a town along the Inner German border and the Baltic Sea. There was only a small fence that divided between East and West Germany. The locals had told her to be careful, because when the tide came in, the fence on the beach wasn't visible, and it would be very easy for her to cross accidentally. They said there had been instances of tourists walking along the beach, accidentally entering East Germany, and getting stuck there. I've always been intrigued by this story, and I've always wondered what the border looked like at the sea. Unfortunately, she did not have any pictures. As a 20 year-old American tourist, she was probably too nervous to take a picture of it. I wonder if this was the same place she was talking about.