The best swimming style for self-rescue is the jellyfish float.

1. The jellyfish floating method is suitable for people who have no experience in water. Not everyone can easily expose their head and lie on the water to float. However, the jellyfish floating method only requires your breath and you may survive. You don't breathe through your nose just like you wash your face. Simply take a breath into your chest and relax your whole body without tension.

2. Let your limbs go down without exerting any force. When your head is submerged in the water, you can look at the bottom. The back of your body will naturally float due to the breath in your chest and lungs. Exhale slowly in the water and quickly finish exhaling. Use your hands lightly. Gently open your mouth, then take a breath (change) and continue to submerge yourself in the water. This is the most labor-saving and least energy-consuming method for rescue.

3. If you see other boats or rescuers nearby when you are breathing (exchanging) air, step on the water with your feet to float your body, wave your hands to call for help, and if you have other obvious items on you, hold them with your hands. Waving this way has a chance to increase the chance of being rescued. If they don’t notice you, resume your original actions, continue the jellyfish floating method, and wait for the next rescue.

The precautions for swimming are as follows:

1. Individuals should swim alone, not alone, especially children, who must be supervised by a doctor before entering the water. There are other people around to take care of you in the event of a drowning accident.

2. It is not advisable to swim before or after meals. Swimming before meals will make you feel weak and prone to collapse. Swimming with a full stomach after a meal can easily cause vomiting. Swimming before or after a meal will cause physical discomfort anyway, so it is best to go swimming 2 hours after a meal.

3. Carry a swimming ring. For places with relatively deep waters, or for those who are not very good at swimming, please remember to bring swimming ring auxiliary tools. When you are tired from swimming, you can use them to rest. If there is danger, there are also life-saving tools.

4. The swimming time should not be too long. After soaking in the water for too long, you will feel very uncomfortable. Therefore, the swimming time should not be too long and make sure it is within 2 hours.