Let me start with a question – WHY do we need to do safety for each other on freediving open water sessions?
Despite it rarely happens, we shouldn’t ignore a small chance of shallow water blackout on ascend. For this reason, the safety diver needs to dive and meet the ascending freediver at approximately one-third of the depth and escort him to the surface.
Let’s have a closer look at the most frequent mistakes.
The first “popular” mistake is not to follow the surface interval between the dives. For example, freediver comes up from the deep dive, and instead of taking full recovery as if he gets ready for his next deep-dive, almost immediately he confirms he is ready to do safety.
What is the problem here? – Obviously the freediver hasn’t recovered fully. When the freediver get ready for his own deep dive, he would take long rest after the last dive and never dive just after the recovery breathing. It takes a while to remove extra CO2 from tissues and renew the gas balance in the body. So why would freediver prepare to the deep dive more carefully then to the safety dive? Just perhaps, safety dive to 10-15 meters doesn’t sound like a challenge. And if a safety diver just need to watch and escort the freediver it is not a big deal at all. But imagine the situation when the freediver loses consciousness and the safety diver needs to grab him and bring to the surface and then also do all rescue procedures. You know, all this lifting and supporting unresponsive diver on the surface is a pretty exhausting activity. So make sure you have a rest long enough to be able to perform as safety and rescuer in case you need to. Take your time, no rush in freediving.
The second mistake freedivers usually do is connected to equipment.
Before your own dive, you probably leave a snorkel in the float, to avoid dragging. But when you watch your buddy’s dive from the surface, it is more convenient to have snorkel in the mouth. Of course, you hold the line to know when to start the dive, but sometimes it is not enough – your freediver may forget to pull the line or he pulls too weak. So to look down is a good idea because then you can react faster and not miss your freediver. Which makes snorkel a very useful piece of equipment.
The same story is with the fins. If you train without fins, you still need them for safety. Even if your no fins technique is brilliant, lifting a blacked-out freediver to the surface is not a piece of cake. You have to swim really fast, which will be impossible to do without fins. And use proper freediving fins for safety – scuba fins or monofin are unacceptable, you can use them only for your own dives.
The third mistake is to miss the moment when to start the dive.
How do you know when to start your dive as a safety? – When we are talking about a beginner freediver who dives to 15-20-30 meters, the easiest way to check when you need to start the safety dive is do the following: you lie on the surface and hold the line when your freediver reaches the target depth, he grabs the line for a turn and pulls it (which is a part of turning technique). You feel this pull and it means your freediver started the ascend. This is a signal for you to start your dive.
For deep freedivers it’s a bit different story since they know precisely how long the dive lasts and at what exact depth you need to meet them.
Mistake number four – not to watch freediver till his full recovery.
I guess this is the most ordinary mistake. Freediver comes up and after he just finishes recovery breathing, you stop paying attention to him and do your own staff. It’s a huge mistake. Full recovery is not the same as the end of recovery breathing. Recovery breathing is a certain amount of active inhales and passive exhales and may last only 5-15 seconds. But full recovery takes more time. You cannot be sure your freediver is ok 5 seconds after he breaks the surface and shows Ok. Some freedivers have a habit to show OK as soon as they can. And it could happen that the freediver has LMC even after he did recovery breathing. So if you are not continuing watching freediver carefully for a while, you may miss the moment when he requires some support.
Let’s finalize and try to set up 4 main rules for safety in the open water:
- follow surface interval timing for your safety dives same as for your deep dives
- check/put on your gear before you confirm you are available for safety dive
- start the safety dive in time
- Watch freediver till he fully recovers, not till the end of recovery breathing.
By Svitlana Gaidai