1, no swimming without permission;

2, are not allowed to swim with others without authorization;

3. No swimming without parents or teachers;

4, are not allowed to swim in unfamiliar waters;

5, are not allowed to swim in the waters without safety facilities and ambulance personnel;

6. Non-aqueous students are not allowed to go into the water for rescue without authorization.

Extended data:

1. Don't play and chase at the seaside, riverside, lakeside, riverside, reservoir, ditch and pond without permission to prevent slipping into the water.

It is forbidden to swim in the water without permission, especially for teenagers. They must be accompanied by adults and bring lifebuoys.

It is forbidden for teenagers to go fishing without permission. Because the soil and sand near the water will become loose after being soaked in water for a long time, there is a layer of moss in some places, which makes it easy for people to slip into the water when they step on it, even if they don't slip into the water, there is a danger of injury.

References:

Baidu encyclopedia-six no

References:

People's health network-drowning in summer is safe without holidays