This story was in the news here in the past day. A surfer here in NZ got wiped off his board and injured his leg on some rocks. So he crawled up the beach, wrote help and then collapsed. Some girls taking a walk on the hills above saw him writing the word. Initially they thought he was writing hello but realized he needed help and called the local surf club and sent the photo. They also stayed to help to direct the rescuers to the surfers aid. The surfer had a bad leg injury and needed to go to hospital and is doing good now. He is a new father and was grateful to have been helped so quickly.