Diving for coins

Me and my family, went on a vacation in the warm land Spain. We lived in a little city named Aldetorde. My family and I had been there for two weeks now, and today was my first day at the beach. I walked down to the beach, were I rented a boat for three hours. I got thr boat in to the water, and start roing on to the ocean. I have roing around for about a hour, so I was getting a little tierd, so I stopped for a while. when I was standing still in the water, a big crouseship was coming in my way. when the ship was right beside me, I saw a lots of people standing on the top of the ship. They were just standing there and looking in to the nice calm water. But there were a special old lady, and her granddaughter. There were throwing coins in to the water. I thought that the coins was for me, because she was throwing them in my direction. So I stand up in the boat and took a deep breath, and jumped in to the water. I dived down in the lightblue seawater. I look around for the coins but I coun´d seem to find them. But then i saw somthing synning on the bottom of the sea. But I knew that I don´t have enough air to reach them. So I go up to the surface, to take some air, and then down