1. Motivating statements
A. Why wreck dive
B. Potential benefits
C. Beauty
D. Mysteriousness
E. One man’s trash is another man’s treasure
F. It’s fun
2. Down lines and surface supports
A. Size
B. Material
C. Surface supports
I. Communications, when and if necessary
II. Back-up procedures
3. The buddy system
4. Buddy contact
A. Contact with varied visibility
B. Buddy lines
C. Line signals
D. Buddy positioning in close proximity
5. Navigation/charting
A. Usage of the slate
I. Larger than normal
II. Pre-dive marking
B. Pre-planning the dive using charts, other information
C. Directional determination
6. Disorientation
A. With/without buddy
B. Lost buddy
C. Light failure
D. Emergency procedures
7. Special equipment
A. Lights
I. Primary and backup
II. Size
III. Burn time
Iv. Usage
B. Knives and cutting devices
8. Limited visibility diving
A. Silt-out
B. Psychological considerations.
9. Light usage
A. Importance of light and backup
B. Dark vision, don’t shine light in buddy’s eyes
10. Life lines and reels
A. Type of line
B. Tie-offs
C. Directional markers
D. Line handling and reeling must be practiced on land prior to
Performing this skill underwater
11. Special emergency procedures
A. Safe wreck
I. As normal, but with considerations for lack of free access to the surface in some cases
B. Hazardous or otherwise unsafe wrecks
I. Must avoid
II. Don’t enter doors blocked
III. Entrance restrictions
12. Mapping the wreck
A. Vertical
B. Horizontal
C. Feature identification
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– Survey a wreck
– Safety considerations for navigating and exploring wrecks.
– Surveying and mapping a wreck.
– Using penetration lines and reels to guide exploration.
Techniques to avoid kicking up silt or disturbing the wreck and its inhabitants. |