Beginners usually start with the discovery or introductory dive that is carried out in the waist depth shallow waters of the lagoons. From here it is just one step to experience the wonders of underwater life. An internationally recognized PADI Open Water Diver certificate can be obtained after nine dives and theory lessons, which usually takes about a week. Some schools offer training up to the level of a professional diver. The diving schools may require a certification of physical fitness. Qualified divers should bring their log book and copies of certificates and cards.