What is the main point of "Catch the Sea"?

It was a day of summer vacation. I asked my uncle to take me to catch the sea, and my uncle agreed. When we reached the seaside, the tide just began to ebb and the sea was rushing down. Only the splash still looks back from time to time, as if reluctant to leave. I was so excited that I flew to catch up with the distant waves.

A child over there is looking for something with his head down. I went to have a look, but my little friend just kept silent. It turned out that a crab was unwilling to give in easily and was fleeing from east to west. Suddenly, the little friend cried with a sigh. It turned out that the crab caught his hand with a big paw.

Gee, why does my foot itch? Looking down, oh, it's prawns teasing me! It has two long beards and swings like a military commander on the stage. I stretched out my hand and squeezed it gently, and the military commander became my prisoner. I can't stand it anymore.

As I walked back, I sang my favorite song: "When I was a child, my mother told me that the sea was my hometown …"?

Extended data

Precautions for going to sea:

1, Time: It is generally best to catch the sea during the flood season, because the sea water recedes far and fast during the flood season, especially shellfish and seafood. When the sea recedes, these shellfish and seafood are placed on the beach or mudflat.

2. Weather: When the south wind blows, it is best to have a single south wind and southwest wind, and the wind is strong, so that the tide will retreat further with the help of wind than when there is no wind. This weather is the best season.

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