[Going into black water you feel] fear. For me it's fear and I won't lie. But it's a matter of being able to control the fear, control yourself and just get in and do the job.



[Changing tanks is particularly stressful in black water]... When you take your last breath, you'll feel the mask just suck onto your face. Hopefully you'll feel it tightening at the end of that last breath.



Otherwise you've got no air in your lungs and you've got to quickly fumble and try and find this [switch], while staying calm, with empty lungs.