Only 15-20% of my work is in the sea, where I use a Scuba tank. It’s in the sea that you always get really good pictures, as you’ve got nature all around and you’re not hemmed in by four walls. Fish, for example, always add something to an image.
The horse shot was done in the Carribean. I'd found out that horses regularly swim there so I went out with this shot in mind. They only swim briefly in the early morning and there were difficulties because the sun didn't shine or they went the wrong way, because the riders couldn't tell where I was when I was under the water.
On one occasion we were in about 10 feet of water and the horse was moving very fast through the water. Its nose was sticking out of the water and then there is its long neck and back and its legs were thrashing about far lower than you would expect. I thought there was not going to be enough space and my head was going to get hoofed. After two weeks of getting up at 4 in the morning I ended up with just this one shot; but it was worth it.