What is the recommended fin kick strategy when a diver is fatigued?

Using alternate fin kicks is the recommended strategy when a diver is fatigued because this approach allows for energy conservation while maintaining movement through the water. Alternating the legs can reduce strain on muscle groups that may already be exhausted, help to mitigate further fatigue, and allow the diver to maintain a steady and controlled pace.

In situations where a diver feels fatigued, utilizing powerful kicks can lead to additional exhaustion and could compromise control and stability in the water. Ceasing all movement is not practical as it could lead to negative buoyancy or undesirable drift. Switching to a surface stroke, while it may offer some respite, may not be as effective for managing energy efficiently and maintaining forward propulsion in the water compared to the alternate fin kicks technique. This strategy is particularly beneficial as it also facilitates better breathing and can help the diver to stay calm and focused when tired.