What is surge in diving?

Surge is defined as the movement of water that occurs as a result of wave action, particularly in shallow water areas such as the ocean surf zone. This phenomenon is characterized by the forward and backward motion of water, which can impact divers significantly. When waves break, they create powerful currents that can propel water towards the shore and then retreat, causing a rhythmic motion. This movement can lead to challenges in maintaining stability, orientation, and control while diving.

Understanding surge is crucial for divers, as it can affect their buoyancy and position, making it essential to maximize awareness of one's surroundings and adjust diving techniques accordingly. Surge can also influence underwater visibility and current patterns but is specifically tied to the dynamics of wave action, distinguishing it from other water movement factors such as currents or temperature changes which are not directly related.