I need a better story.

I was swimming in the ocean. The water was bright blue and it was full of lots of people. There was a giant dolphin swimming back and forth close to the shore, like it was trapped. Sadly, all of the kids in the water were having fun and playing with it. The dolphin looked sickly and miserable in the shallow water because it could barely move. Finally some bigger waves came and it swam away. I was relieved. All of a sudden more waves started coming in. There came a screech from the angry red haired girl next to me. "It's the Chinese tidal waves!" she shrieked. Everyone escaped from the water in terror.