In reply to Matt Slat-errr:
I would look at something to do with film and television, gain experience in the industry and get contacts!!
2nd plan of action would be to get as many relevant outdoor tickets and experience as possible i.e SPA, MIA, rope access, advance first Aid, RYA powerboat level 2, HSE part 4 Pro Scuba etc etc. I would think you would be self employed to.
Maybe write to a production company asking what's required and if they could take you on as work experience, that could be your foot in the door? If you don't ask, you don't get ; )
Post edited at 10:27