根据短文内容判断，与短文内容是否相符。

There are many beaches in Hong Kong. Many people go there to swim. You can see many women, men and children there. You can swim there, but remember: 1. Don't swim alone. 2. Don't swim after a meal. Don't swim when you are hungry or tired. 3. Don't stay in the water for a long time.

Do you know the meaning of the flags? A red flag: Anyone can't swim here. A blue flag: Children can't swim here.