Refresher Course

A short knowledge and skills review for certified divers returning after inactivity, usually recommended after 6 to 12 months out of the water.

A refresher course is a short program that brings a certified diver back up to speed after time away from the water. It typically combines a knowledge review, covering dive planning, pressure, and safety procedures, with a confined water or easy open water session repeating core skills: mask clearing, regulator recovery, buoyancy control, and a proper buddy check. PADI brands it ReActivate, SSI calls it Scuba Skills Update, and most agencies have an equivalent.

There is no rule that forces a refresher, since certifications do not expire, but many operators require one when your last logged dive is more than 6 to 12 months old, and it is genuinely worth doing: skills like weighting and buoyancy fade quickly, and a relaxed pool hour beats fumbling on a boat. A refresher usually takes half a day and requires no exam.

Your logbook is the evidence here. An up to date dive log showing recent activity is often exactly what a dive center checks before deciding whether to ask for a refresher, and divers who log consistently sometimes skip the requirement entirely. If you know a trip is coming after a long dry spell, booking a refresher at home beats spending the first day of vacation in a pool.