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Is Freediving Dangerous? What Are The Risks of Freediving and How to Avoid Them

The allure of gliding effortlessly through the depths, being one with marine life, and witnessing the

stunning underwater landscapes is indescribable. Freediving offers an intimate connection with the ocean, elevating our consciousness and nurturing respect for marine ecosystems.

freediver with flippers exploring turqoise ocean

Yet, we’re not going to lie to you– this sport can be frightening! Submerging yourself deep into such a foreign environment is naturally a little

bit scary. There’s no oxygen down there, and our bodies aren’t designed to handle extreme amounts of underwater pressure. That’s what makes freediving so exhilarating– it’s an adventure sport that gives us leave to explore a miraculous world that can be a bit trickier to access. It requires skill, training, and yes, bravery.


Sometimes, knowing the risks of freediving and being able to name them can bring us more security and confidence out there in the water. Learning more about the safety hazards of freediving isn’t designed to scare any newcomers to the sport. Rather, it’s to equip you with the knowledge you need to be safe diving deep! Read on to learn more about the potential dangers of freediving, and the measures you can take to enjoy this mesmerizing activity safely.


What Are The Risks of Freediving?

Freediving, the art of exploring the underwater world without the use of scuba equipment, has been captivating adventurers and ocean enthusiasts for centuries. While it offers an unparalleled experience of freedom and connection with nature, the question of its safety is frequently raised.

freediver swimming deep into the blue ocean safely

Hypoxia

One of the most critical risks in freediving is hypoxia, which occurs when the body is deprived of oxygen. Oxygen levels decrease rapidly as a diver descends, reducing oxygen supply to the brain, potentially causing blackouts and loss of consciousness.


Avoiding hypoxia involves mastering proper breath-holding techniques and training to improve your lung capacity. Lung capacity can be improved through deep breathing techniques, lung stretches, and yoga. Aerobic exercises like swimming, running, or cycling can also enhance lung function and increase the amount of air your lungs can hold. Avoiding smoking and maintaining good overall physical fitness contribute to better lung capacity over time.


How to Avoid Hypoxia

  • Stay relaxed and calm during dives.

  • If you’re feeling any urges to breathe, you’ll want to ascend.

  • Monitor your dive time carefully, so you aren’t staying underwater for too too long.

  • Lightheadedness is an early sign of hypoxia you’ll want to look out for.

Shallow Water Blackout

Shallow water blackout is a sudden loss of consciousness that can occur when a diver ascends too quickly after a deep dive. It happens due to hypoxia, and is especially dangerous near the surface where the risk of injury or drowning is high. As important as it is to learn about descent techniques, don’t neglect ascension techniques as well!


How to Avoid Shallow Water Blackout

  • Avoid prolonged breath-holding at the surface before a dive, as it can deplete the body of carbon dioxide and delay the urge to breath.

  • Ascend slowly and steadily, taking frequent pauses for recovery breaths.

  • Always dive with a competent buddy who can monitor your dive and ensure your safe return to the surface.

Barotrauma and Lung Squeeze

freediver equalizing their breath while diving underwater safely

The increased pressure underwater can lead to barotrauma, a condition where air spaces in the body are compressed. Lung squeeze is a specific type of barotrauma that affects the lungs, potentially causing injuries.


How to Avoid Lung Squeeze

  • Equalize early and often during your descent to balance the pressure in your ears, sinuses, and lungs.

  • Descend and ascend slowly to give your body time to adapt to pressure changes.

  • Avoid breath-holding while ascending, as it can trap expanding air in your lungs, leading to lung squeeze.

  • Never force your equalization; if you experience difficulty, ascend slightly and try again.

  • Avoid diving if you have respiratory infections or congestion that can hinder equalization.

  • Gradually increase dive depths over time to allow your body to adapt to pressure changes more effectively.

  • Always listen to your body; if you feel any discomfort or pain during a dive, ascend immediately and seek medical attention if necessary.

Marine Life Hazards

Most freedivers are doing so in order to encounter marine life. It’s critical to remember that we are guests in the underwater world, with a privileged and rare view. Freedivers must follow all local and/or regional guidelines when it comes to maintaining a safe distance from marine life such as turtles, stingrays, and dolphins. Creatures like sharks or jellyfish could disrupt a dive and should be approached with caution and respect.


Safe Freediving Tips 101

Here are a few general reminders to ensure your freediving trips are as safe as they can be! By following these tips, and being equipped with the aforementioned freediving risks, you’ll be sure to have a confident and empowered experience.

  • Attend a certified freediving course to receive professional training and safety guidance. You can’t skip this step!

  • Practice regular breath-holding exercises to improve lung capacity and breath control.

  • Stay well-hydrated before and after diving to optimize your physical performance.

  • Know and respect your limits. Avoid pushing yourself beyond your capabilities.

  • Monitor weather and sea conditions before diving and avoid diving in adverse weather.

  • Buddy up! Never freedive alone. Having a reliable buddy can be a lifesaver in emergencies. Establish clear hand signals with your buddy for effective communication underwater.

  • Relax and stay calm during your dives to conserve energy and oxygen. Be cautious when exploring new dive locations, and stick to familiar areas until you're more experienced.

  • Learn rescue techniques and first aid in case you need to assist a fellow freediver in distress.


woman holding breath while freediving and snorkeling

The Risk Level of Freediving

So, is freediving dangerous? Yes! But so is driving in a car, and pretty much all other adventure sports. Freediving is a remarkable way to connect with the ocean and experience its wonders firsthand. However, it comes with inherent risks. By understanding these risks and adhering to safety measures, freedivers can minimize dangers and make their underwater journeys safer and more enjoyable.


Proper training, knowledge, respect for the ocean, and responsible diving practices are the cornerstones of a fulfilling and secure freediving experience. Embrace the art of freediving with passion, but always prioritize safety above all else.


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