Introductory diving

After putting on the necessary diving equipment, the participant enters the water under close supervision of the instructor.

The Divers Alert Network (DAN) Flying after Diving workshop of 2002 recommended a 12-hour surface interval for uncertified individuals who took part in an introductory scuba experience before flying or ascending to an altitude greater than, or cabin pressure less than, an altitude equivalent of 2,000 feet (610 m).

Despite the standardization, the title and contents of the program vary depending on the provider and their membership of a diver certification agency.

The CMAS Introductory Scuba Experience participants should be at least 14 years of age and able to swim.

Participants who have completed two open water dives will receive an "NAUI Passport Diver" confirmation.

[8] Participants in a PADI "Discover Scuba Diving" program should be at least 10 years old and should be able to swim.

Afterwards, one or more directly supervised open water dives can be done to a maximum depth of 12 metres (39 ft).

This is a common request for people who try diving, then want to repeat the activity (often at a different location).

The "Bubblemaker" program is a trial dive in the swimming pool for children from 8 years of age.

The course takes place in confined water to a maximum depth of 5 metres (16 ft), and includes a theory session.