| Acronym | Meaning |
 | DCAP | Decompression Computation And Analysis Program |
| GPS | Global Positioing System |
| IDEA | International Diving Educators Association; Diving Instruction Organization. |
| AOW | Advanced Open Water |
| DO | Dive Officer (BSAC) |
| LAT | Lowest Astonomical Tide |
| ITW | Instructor Training Workshop (BSAC) |
| TDT | Total Dive Time |
| CESA | Controlled Emergency Swimming Ascent |
| RIB | Rigid-Hulled Inflatable Boat |
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