Each certifying agency have their own recomendations of when a scuba diver should refresh their skills. Yet, it is left to each individual dive centre to set their own rules based on the divers experience and how long since their last dive.
A good rule of thumb is if you have not dived for 6 months or longer and are not very experienced then expect to have to do one of the refresher courses before being allowed to dive again.
Typically this is a half day course which consists of a short instructor assisted knowledge development session and quiz followed by skill practice in confined shallow waters. Each skill from the open water course will be refreshed under the supervision of a dive professional. This allows you to hone your skills and brush up on anything you may have forgotten before hitting the open water.
Requirements: - Proof of certification - Medicaly fit (click here for medical form)
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