Greg absorbed in the self study program.

Dive Instructor Fred driving home a point.

Crew reviewing the material.

Test time.

Poolside instruction.

Getting familiar with the gear.

Pre-dive equipment checks.

Poolside preparation.

Chris H and Chris W doing their swim test.

One more lap down.

Tread water and float.

Anti-fog the mask.

Donning the gear.

Find the alternate breathing source.

Check the gauges.