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Multi-Level Diver
Lynne and Kevin, Cozumel -- picture by Peter Rothschild

I will teach you what multilevel diving is and why you want to plan for multilevel dives, which is really how we do most of our diving. You'll also get to see the various types of multilevel dive calculators and computers, as well as learn about multilevel dive planning, organization, procedures, techniques, and potential problems.  I will give you special instruction on the techniques used for planning your air consumption so that you can make sure your dive planning is safe.

From the Instructor Manual:

The Multilevel Diver course is to include two open water training dives, which may be conducted in one day. It is recommended, but not required, that the second open water training dive conducted during the course be a repetitive dive (within 6 hours of the first dive). This allows student divers to practice using multilevel dive planning devices as repetitive dive calculators. It is also recommended, but not required, that divers enrolled in the course be exposed to the use of different types of multilevel dive calculators....

The first training dive may be conducted at night for divers who have completed the Night Adventure Dive or the first dive of the PADI Night Diver specialty course, or have qualifying night diving  experience.  The PADI Advanced Open Water Diver rating (or other qualifying certification) is recommended if Multilevel Specialty Diver training is conducted deeper than 18 metres/60 feet.
After the training dives, student divers are required to log their dives in their personal log books.

This course covers the knowledge and techniques of multilevel diving. The minimum number of recommended hours is 12, with time being equally divided between knowledge development and actual water-training sessions. To conduct a Multilevel Diver course, the following is to be included:

1. the planning, organization, procedures, techniques, problems and hazards of multilevel diving.
2. definition and advantages of multilevel diving.
3. methods of calculating multilevel dives....
4. review of decompression sickness theory.
5. review of emergency decompression procedures.
6. review of PADIís S.A.F.E. campaign.
7. procedures for flying after diving.
8. guidelines, rules and procedures for multilevel diving with...diving computers.
9. care and maintenance of dive computers.