Writing prompt: My Summer Holiday

Student essay:
This summer holiday I went to seaside.And I enjoyed myself.But in my memory,the best thing is swam in the sea.
That is a sunny day,and my parents and I went to seside,I'm so excited that jumped into the sea as soon as I got there.The water was very clear only a bit cold.I flet I was a fish in the sea We played ball games in the sea.Everybody looked very exciting. Suddenly,my father said:"let's have a match ,about who is the fastest!" "okay!" I said.So we started a exciting match.What a pity! My dad was the champion.But we were very happy.
This summer holiday brought me many interesting things .And I was so intoxicated with the spirit of these.

Corrected essay:
This summer holiday I went to the seaside. And I enjoyed myself. But in my memory, the best thing was swimming in the sea.
That was a sunny day, and my parents and I went to the seaside. I was so excited that I jumped into the sea as soon as I got there. The water was very clear, only a bit cold. I felt I was a fish in the sea. We played ball games in the sea. Everybody looked very excited. Suddenly, my father said, "Let's have a match about who is the fastest!" "Okay!" I said. So we started an exciting match. What a pity! My dad was the champion. But we were very happy. This summer holiday brought me many interesting things. And I was so intoxicated with the spirit of these.