Up the creek without a plane?

Today's brilliant idea came to me courtesy of Duncan Carroll, a sailing buddy. He suggested I take a look at the Crew Seekers website and think getting some sailing in on my year off. Having taken a look I wondered if it would be possible to get myself around the world without setting foot on a plane?

This is now my challenge, I must touch every continent and I must do it without flying.

After setting myself this task I remembered some of the dangers. After checking the International Maritime Bureau's website for the latest stats on piracy I may want to rethink my approach. The South China Sea is a particularly busy spot for pirates and to get from the Indonesian archipelago to Australia may be a little tricky. Then there is the Pacific Ocean. Hmmm, some thinking required.

I also realised that I'm going to have to get all my jabs done too. I can't just rock up to any old place and not have my inoculations now can I? Then there is the malaria tablets to think of. What have I got myself in for?