Diving underwater can provide some degree of safety during certain types of waves, but it depends on the specific circumstances and characteristics of the wave. Here are a few factors to consider:
Surface waves: Diving under the water can be effective in avoiding surface waves, such as those generated by wind or tides. These waves typically have their strongest impact on the surface and become less powerful at greater depths. By submerging yourself, you reduce your exposure to the force of the wave and can potentially avoid being directly affected by its impact.
Tsunamis: Tsunamis are large ocean waves usually caused by undersea earthquakes, volcanic eruptions, or landslides. Diving underwater alone is generally not a reliable method to avoid the impact of a tsunami. Tsunamis involve the displacement of a massive amount of water, and their force can be overwhelming, even at considerable depths. The best course of action during a tsunami warning is to follow the advice of local authorities, which may involve seeking higher ground or moving inland to escape the potential danger.
Rip currents: Diving underwater is not an effective strategy for dealing with rip currents. Rip currents are powerful, narrow channels of water that flow away from the shore and can pull swimmers away from the beach. If caught in a rip current, it is generally advised not to fight against it but instead to swim parallel to the shore until you are out of its grip. Once you're free from the strong current, you can then make your way back to shore.
It's important to note that water can still be hazardous, and there are additional risks associated with diving underwater during turbulent conditions. These include limited visibility, potential impact with submerged objects, and the risk of becoming disoriented or trapped underwater. If you find yourself in a situation where you need to assess the safety of diving underwater to avoid a wave, it is crucial to exercise caution and consider the specific circumstances and advice from local authorities or lifeguards.