Um, how many islands did you go round at the end of your challenge? [laughs]

Um, frighteningly more than I thought there were going to be at the start of the challenge.

Um, it's like anything.

It was a challenge nobody had ever done.

Nobody had ever sailed round all the islands in England and Wales.

Uh, so the first job was actually to find out how many there were.

I kind of guessed, having done a bit of Wikipedia, about 150.

And what about number three?