Cool video clip

[Giles Cornah]

Hi everyone, I'm putting together a short video promo for a round the world sailing adventure. I desperately need a couple of short 'adventurous looking' video clips of either sailing through ice bergs or sailing in rough sea. I wonder if anyone can help me on this? Ideally in 1080p 24 hd. I don't have a budget so couldn't pay for them, but I would be extremely grateful and would credit you at the end. Thanks!