The sign with the beach number is placed at the foot of the sand dune or at some other place where it is visible from the beach. The sign always has a letter and a number.
If a swimming accident or other accidents happen on the beach: call the emergency dispatch centre on phone no. 112. Start by telling them what has happened and where you are. On most beaches you can find a beach number on a sign or stand. Tell the emergency dispatch centre the beach number and stay by the phone until they understand your message. The police and rescue service know the location of the beach sign, and they can quickly send a rescue crew to the exact location of the accident. Notice that you are not necessarily being connected to the closets emergency dispatch centre if you call 112 from a cell phone, so it is very important that you can give the exact location of the accident, e.g. by telling them the beach number.