During which kick are the feet brought together until the fins "clap" together?

The modified frog kick involves bringing the feet together until the fins nearly touch or "clap" together at the end of the kick. This maneuver enhances propulsion by creating a more streamlined shape and allows for increased efficiency and power during underwater movement.

In the modified frog kick, the diver typically performs a motion that starts with the legs moving apart in a circular motion, which is then followed by bringing the feet together. This clapping action not only provides thrust but also helps in stabilizing the diver in a streamlined position, which is particularly beneficial in cavern diving scenarios where control and efficiency are paramount.

While other kicking techniques like the frog kick, scissor kick, and shuffle do involve various leg movements, they do not specifically include the action of the fins clapping together in the same way as the modified frog kick. Understanding this distinction is crucial for divers to choose the most effective kick based on their underwater environment and desired level of propulsion.