Answer:
You can start with something like.....
Step-by-step explanation:
It happened last suday (or any holiday) I was really exited because it was my birthday and my parents promised to take me to the beach (skip to when you reach the beach you can describe view time to reach etc.) Then you decided to go in the water a have a swim. Then in the water, you saw something brown you go near it and see a chest with two, three gold coins near it.