He rarely combs his hair and, after some days, we had to insist that he washed his shorts for the benefit of everyone else on board. What he does have is immense enthusiasm for his work and the subjects of his films. It's my third visit here. Ever since I was a little boy I wanted to swim with marine iguanas. It was such a thrill to see what at first I thought were just rocks of volcanic lava, and then to find it was a carpet of those animals.
Flightless cormorants are just amazing, too.
We were to be thrilled by the natural phosphorescence of the waters around the Galapagos. As we cruised at night, groups of Pacific bottlenose dolphins would race to the boat to enjoy a ride at the bow. Each animal was totally delineated in the darkness by eerie green light as it raced through the black water. One could instantly understand the inspiration for the dolphin in A Hitchhiker's Guide to the Galaxy. It's such a privilege to host Discovery's Shark Week Uncaged - a great honour.