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Science of Diving is the lowest-priced course on Orca Diving's menu at 110€. It covers the academic foundations behind scuba: physics of pressure and gas behaviour, physiology of diving, the aquatic environment, and dive equipment theory. The course is classroom-focused and runs in the centre's fully equipped classroom at Club Nàutic de l'Escala.

Oscar Diving already runs marine biology talks and species monographs from the same classroom space — a detail from the centre's own description that suggests the environment is set up for this kind of academic content. The Science of Diving fits naturally into that programme, giving students a more structured framework for understanding what they've been observing in the water.

At 110€ it is often combined with other specialities, particularly for divers on the Divemaster track where this academic content is a standard component. The SSI Science of Diving certification also carries credit toward higher-level programmes within the SSI pathway.

No open water dives are required for this course. Students can complete it during periods of poor weather or as a standalone module between dive days.