(1) You are not allowed to swim without permission.

(2) It is not allowed to swim with classmates without authorization.

(3) Swimming is not allowed without the guidance of parents or teachers.

(4) No swimming is allowed in the waters without safety facilities and ambulance personnel.

(5) Don't swim in unfamiliar waters.

(6) Students who don't understand water are not allowed to go into the water for rescue.

Second, the self-help method when drowning:

(1) Don't panic. If you find someone around, call for help immediately.

(2) Relax the whole body, breathe in enough air, make the body float on the water, head out of the water, kick the water with your feet to prevent physical loss and wait for rescue.

(3) When the body sinks, you can press your palm down.

(4) If you suddenly cramp in the water and cannot go ashore, you should call for help immediately. If there is no one around, you can use backstroke or deep breathing to dive into the water, straighten your cramped legs and pull your toes up with your hands to relieve cramps.

(5) If you don't know water, don't go into the water to save people.

Third, how to save yourself when drowning occurs?

Unfamiliar with water: in addition to calling for help, take a supine position and lean your head back so that your nose can breathe out of the water. Shallow exhalation and deep inhalation. Don't panic at this time, don't move your arms, so your body will sink faster.

Swimmer: If a calf cramp occurs, keep calm, take a backstroke position, bend the toes of the cramped leg backwards with your hands to relieve the cramp, and then slowly swim to the shore.