Knowledge · guides
Diving guides — one step at a time
Practical articles for people just starting out with diving — and for those who want to descend with more confidence.
Tame the water step by step — the road from nerves to your first dive
Nerves before the water are not a character flaw. They are your body telling you that you are doing something new. I will show you how to turn them into calm — stage by stage, with no rush and nothing to prove.
Read DOSSIER 02 · 5 minWhat your first try dive really looks like — minute by minute
No mysteries, no surprises. I walk you through exactly what happens from the moment you park at Koparki to the moment you step out of the water with your first underwater breath behind you.
Read DOSSIER 03 · 5 minKoparki in Jaworzno — a guide to the underwater objects
The flooded Koparki quarry is one of the best spots in Silesia for learning and for your first dives. Let me walk you through what you will see beneath the surface — and why this place works so well for people who are only just starting out.
Read DOSSIER 04 · 4 minDo I need to know how to swim to start diving?
The question I hear most often — and one of the most common misunderstandings. I explain how much swimming you actually need, and what you absolutely do not have to know how to do in order to take your first breath underwater.
Read DOSSIER 05 · 6 minThe OWD course — what to expect and why it pays to start with that first breath
Open Water Diver is your passport to diving on your own anywhere in the world. Here is how the course works with me: how long it takes, what it covers, what the certification gives you — and why working one-on-one changes everything.
Read DOSSIER 06 · 11 minPartial-pressure blending — ideal gas, van der Waals and the real-world model
You top up nitrox or trimix by letting oxygen in to some pressure, then filling with air. But how much oxygen did you really let in? I work the same mix three ways — from the ideal gas, through van der Waals, to the real-world model — and show you which one tells the truth.
Read DOSSIER 07 · 14 minHow likely is DCS? How an algorithm predicts decompression sickness from a dive profile
A table says "allowed" or "not allowed". A probabilistic model says something far more interesting: with what probability. I will show you — using the scientific literature and a working simulator — how to compute the risk of decompression sickness from the dive profile alone, and what really happens to that risk when you cut your decompression short.
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