(OWD) is an entry-level autonomous diver certification for recreational scuba diving. Although different agencies use different names, similar entry-level courses are offered by all recreational diving agencies and consist of a combination of knowledge development (theory), confined water dives (practical training) and open water dives (experience) suitable to allow the diver to dive on open circuit scuba, in open water to a limited depth and in conditions similar to those in which the diver has been trained or later gained appropriate experience, to an acceptable level of safety.

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Fusce luctus diam at augue interdum tempus. Maecenas hendrerit lacus sit amet placerat pellentesque. Etiam ut elementum magna, congue elementum lectus.