For the ones which aren’t knowledgeable about the sport of free-dive spearfishing, it entails using a breath-hold technique and swimming down to your target depth at which you would then shoot a fish with an elastic band-powered spear gun.
This is a dangerous game for many reasons. With a breath-hold technique is dangerous since you begin to push your limits in depth, you face the risk of losing consciousness due to lack of oxygen to the brain. Another element of risk associated with this game is that the presence of predators such as sharks. When you are successful in swimming , finding a fish and shooting it with your spear gun, getting blood in the water is unavoidable. The blood in the water can not just attract them but also place them in a feeding frenzy with aggressive behavior. It is not if, it’s when.
All danger aside, free dive spearfishing gives you a pure, euphoric adrenaline rush. From the minute you enter the water, you have left your normal surroundings and entered an alien domain where everything is faster, more agile, and more attuned to the environment around them. This poor feeling is humbling as you swim down into the blue abyss. An extremely caveman-esque adrenaline rush washes over you while you swim down with just you and your spear gun, looking for prey and hoping another predator doesn’t materialize out of the blue.
When descending, sometimes there is what is called a thermocline. This is a layer of water with a warmer temperature and heavy salinity levels, causing it to be quite blurry and not conducive to good visibility. Immediately beneath the thermocline the water becomes noticeably colder and visibility is significantly improved. Breaking through the thermocline is obviously an extreme moment, one second you are surrounded by this blurry water and can barely see your hand before your face and the next moment it is like a veil has been lifted and you can see clearly all around you.
When one finally reaches the bottom or their target thickness, chooses which fish they need to harvest, makes the kill shot, and propels down themselves the surface, the feeling of success and achievement is incomparable.