1, you can gently hold the pool wall with your hands, relax and float on the water, with your legs shoulder-width apart.

2, toe hook tight.

3, close the calf, the calf bottoms up as much as possible, the toes continue to hook, and the knees are wider than the fists.

4. Open the soles of your feet to both sides, and at the same time hook your toes tightly, and don't open your knees too much.

5. Push the calf outward on both sides, and wipe it down slightly when pushing it out, so you can feel the water scraping on the soles of your feet. Be careful when you push your toes out.

6. After kicking out, the soles of the feet and toes can be relaxed, and then clipped in to complete a kicking action.