The story is about two brothers, Chris and the narrator, who went on a walk on a white beach with sand dunes and found a cubby made of overgrown bushes. They discovered a slippery dip and went down it, but encountered a snake on their way back.

The characters mentioned in the text are Chris, the narrator, and a snake.

The main characters got a problem when they encountered the snake.

The problem became complicated when the snake headed towards the narrator and Chris froze, not knowing what to do.

The characters solved the problem by distracting the snake with a rustling sound and diving down the slippery dip to escape it. They avoided the cubby from then on.