Article: The dolphin dive depends on the strength of your legs to project you up and back into water in a quick burst, the way dolphins dive in an out of water. As you see a wave approaching, press your feet firmly onto the sand under you and bend your knees. Bring your arms up straight above you, pressing them to the sides of your head. This dive can be done in any water above knee height, but shallow enough to stand in. As the wave crashes forward, jump out of the water and curve your body to launch back into it. Keep your arms and legs straight but bend at the waist to angle your dive. Aim to dive deep enough to touch the sand with your fingertips. Stay in the deepest spot under the wave while it crashes over you. Hold your breath and keep your muscles tight to hold your position. Brace yourself by planting your fingers into the sand, if necessary. As you feel the wave passing over you, start advancing along the sand. Use your fingers to touch the ground and move yourself forward without surfacing. After a few seconds, resurface. Take a deep breath and dive again if another wave is coming.

What is a summary?
Position your arms and bend your knees when a wave approaches. Jump and curve your body into the water towards the sand. Hold yourself in position as the wave passes over you. Move forward  along the sand before coming up.