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Course Outline

The maximum depth for open water dive 4 is 18 meters/60 feet. For juniors, the maximum depth is 15 meters/50 feet.

This is what you will do during dive 4.

  1. Assemble your equipment, and check the assembly with your buddy.
  2. Listen to and participate in the dive planning and briefings. Review hand signals.
  3. Gear up and perform the pre-dive safety checks with your buddy.
  4. Enter the water in the manner discussed in the briefing.
  5. Check your buoyancy at the surface.
  6. Perform an S-Drill, and monitor your instruments.
  7. Complete a controlled descent without a reference line to the maximum depth for your course.
  8. Without touching the bottom, make sure you achieve neutral buoyancy at an agreed depth.
  9. Be prepared for your instructor to use hand signals and/or signs to simulate a random problem at any time. Practice failure scenarios. Your response will be to take the correct course of action for the problem presented, which could be one of the following:
    1. Instruments not working
    2. Feeling uncomfortable/unwell
    3. Being low on gas
    4. Being out of gas
  10. Demonstrate swimming while trim. Under the direct supervision of your instructor, you will swim in a horizontal position while finning correctly.
  11. Check for positive buoyancy on the surface.
  12. Complete surface market buoy (SMB) deployment on the surface.
  13. Exit the water in the manner discussed in the pre-dive briefing.
  14. Complete post-dive equipment care.
  15. Listen to and participate in the debriefing.
    1. Use a PDC to see new NDL, or calculate the end-pressure group with tables.
    2. Calculate SAC and RMV.
  16. Log the dive online.
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