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Course Outline

Scuba divers on a boat

The maximum depth for open water dive 1 is 12 meters/40 feet.

This is what you will do during dive 1.

  1. Assemble your equipment, and check the assembly with your buddy.
  2. Listen to and participate in the dive planning and briefings.
  3. Gear up and complete the pre-dive buddy safety checks.
  4. Enter the water in the manner discussed in the briefing.
  5. Adjust the weights for salt water. It is recommended that you get the correct weighting sorted out before your planned dive if you are entering a saltwater environment for the first time.
  6. Remove and replace the snorkel while swimming to the dive site or on the surface.
  7. Perform an S-Drill, and monitor your instruments.
  8. Complete a controlled descent with a descent/ascent line or sloping bottom contour to a maximum depth of 12 meters/40 feet.
  9. Monitor your instruments.
  10. If you were unable to complete the S-Drill and bubble check after entering the water, do a bubble check immediately upon arriving at a stable depth but no deeper than 6 meters/20 feet.
  11. At the agreed depth, adjust and stabilize your neutral buoyancy. Monitor your instruments to check:
    1. Air/gas supply
    2. Depth
    3. Allowable dive time
  12. At the agreed depth:
    1. Remove your regulator from your mouth without releasing it, replace it, and clear it.
    2. Check your instruments.
    3. Blow bubbles.
  13. Practice regulator recovery.
    1. Remove the primary regulator (blow small bubbles whenever you have no regulator in your mouth), and let the regulator go.
    2. Find your alternate air source (AAS), and place it in your mouth.
    3. Recover the primary regulator with any method, replace it in your mouth, clear the regulator, and breathe.
  14. Clear a partially flooded mask.
  15. Practice stationary gas sharing. While underwater, your instructor will give you the appropriate signal whereupon you will react with the correct response for a low-on-gas situation.
    1. You signal your buddy you are out of breathing gas.
    2. Your buddy will supply their primary regulator to you.
    3. Your buddy will locate and breathe from his or her AAS.
    4. Both buddy team members will hold on to each other, monitor their instruments, and give the OK signal once settled.
    5. You remain stationary. Remember that the diver donating gas to his or her buddy must keep a careful watch on the gas supply. Two people are breathing from one tank now!
  16. Practice swimming and trim. Under the direct supervision of your diving instructor, you will swim in a horizontal position while finning correctly.
  17. Exit the water as per the pre-dive briefing.
  18. Complete post-dive equipment care.
  19. Listen to and participate in the debriefing.
    1. Use a personal dive computer (PDC) to see your new NDL, or calculate the end-pressure group with tables.
    2. Calculate surface air consumption (SAC) and respiratory minute volume (RMV).
  20. Log the dive online.
  • Unit 9 of 9
  • Topic 2 of 5
  • Page 2 of 5