BLOG: What I wanted to say…
Measuring bubbles
Measuring bubbles after diving: Can it be useful? Bubbles are an unreliable individual indicator of Deco stress, but as part of a larger dataset, they can provide valuable insights.
Emergency ascents in diving training
Running out of air underwater is a horror scenario. That’s why you practice emergency ascents – but what should you focus on? What is really important to prevent accidents from happening in the first place?
PRO Discussion: Specialty Courses
Specialties in Diving: Rip-off, Card Sales, or Meaningful Further Education?You can arrange your entire diving life so that you never just go diving, but complete one course after another. Boat diving. An SMB specialty. An ecology specialty per fish species. An extra...
Which GFs are the best?
Setting Gradient Factors on a Dive Computer: How to decide which GFs to use when diving?
Demonstrating Skills
What does “demonstration quality” mean for diving skills? When should you master OWD skills to demonstration quality? And what’s the best way to practice?
New recommendation for oxygen limits
A NOAA workshop has developed new guidelines for oxygen exposure times. A consensus was reached on a pO₂ of 1.3 bar.
How deep can you dive?
Whether on Facebook, in forums, when checking in at the dive center or at the regulars' table, the question of who is actually allowed to dive how deep is a recurring theme among divers.Who allows you to dive? In principle, no one is forbidden to dive, and so anyone...
Oxygen and DCS
Oxygen as First Aid for DCS: Why it is so important to administer oxygen even with the slightest suspicion and how exactly it works against DCS symptoms.
How do I determine my SAC rate?
Don't we all know the question of how long a scuba tank lasts? We usually answer with a casual "It depends..." and have the depth and our breathing in mind. And quite rightly so: these are precisely the two things we need to knoe in order to be able to calculate our...
Read studies
Scientific studies are often bulky – and yet you can understand a lot, even without having studied the subject. We provide a short guide to reading scientific studies using an example from Deco research.
Hovering or kneeling?
Why I prefer to let my diving students take off early The question of whether diving students should kneel or float at the beginning is a constant source of debate - and not just among instructors. Over the years, I have seen many approaches, tried them out and...
Buddy Check
The sun is hot, you're all worked up - fiddling with each other again? Better not.But you should still do a buddy check. Buddy check when diving - essential, not just theoryThe buddy check, or more generally: the safety check in the team before the dive, is actually a...
For the few minutes on the outer reef….
When depth beckons: Many divers are particularly fascinated by depth. But what do you need to be able to dive sensibly beyond recreational diving limits?
Become a Divemaster: Pay for the course in cash or in labor?
The business with dreamsSun, beach, diving - even as beginners, many begin to dream of doing this as a profession. Or at least for a few years... Traveling, making money all over the world, doing exactly what you love to do most anyway - irresistible.The reality is...
Where are the best dive sites in the Canary Islands?
Atlantic? Diving? Really?Always experiencing something new, exploring dive sites that surprise you, and still doing so after hundreds and thousands of dives - that is, at least for me, the most important thing about our beloved hobby.Many divers love warm waters, with...














