- Tag for the shot line - don’t want the shot pulled up when I’m still on the wreck!
- Strobe to find the shot line
- Scooter to tour the wreck
- 100m/330ft reel with self-inflating SMB in case of not finding the shot line
- Spare SMB on 60m/200ft spool
- Primary umbilical light as it’s invariably dark on the wreck
- Backup lights
- Backup computer -- ratio deco pah!
- Pee valve — the second most important invention for scuba diving