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60 stories for“opposition”
CO2 tables build genuine breath hold tolerance over weeks. Hyperventilating beforehand does the opposite of what beginners think it does, and it has killed trained divers.
Sep 2, 2025
One demands breath control and stillness, the other demands equipment discipline. Here is what separates them and where beginners should start.
Jun 24, 2025
Coral is an animal with a skin a few cells thick. The diver who kneels for a photograph, the snorkeller who stands to adjust a mask, and the oxybenzone in a lotion each do damage that the reef cannot repair in a season.
Jun 4, 2024
Compact geography, shore access, wrecks and a new six-person hyperbaric unit make Gozo an unusually practical Mediterranean base for a mixed-experience dive trip.
Jul 25, 2026
Breathe-up, diaphragmatic breathing and the recovery breath are the three that matter. Hyperventilation is the one that removes your warning that you are about to black out.
Aug 10, 2026
Divers who silt the bottom, burn through gas, struggle to hold a safety stop and finish cold usually share one cause. They are carrying too much lead, and every other symptom follows from it.
Sep 5, 2026
Descent equalisation is drilled into every open water student. Reverse block, where expanding gas cannot escape the middle ear or sinus on ascent, gets a sentence in the manual and is considerably harder to manage.
Sep 5, 2026
Most divers carry something sharp and have never once deployed it underwater. The gap between owning a cutting tool and being able to use one in the dark, with one hand, is where people die.
Aug 12, 2026
Tides follow the moon, not the season. Spring tides are the big ones, slack water is not always at high or low tide, and the hour that matters for a dive or a swim is the one the tables show for your own coast.
Sep 23, 2026
