Ismail, universally called Mattey, takes me to the house reef to find my snorkelling legs. The last time I snorkelled was in my teens, but it all comes back fairly comfortably. With masks fitted over eyes and nose, breathing through a plastic pipe, we kick our fins around the reef for about forty minutes, peering at the amazing world under the surface. Beautiful table corals, bright flashes of fish, swirling spirals of herring. The water is clear, and the pretty little fish nibble around the reef, while lower, where the reef drops away into the abyss, larger, slower fish like groupers sail around elegantly. There&rsquos a dog-paddling turtle And here a spiny, still sea urchin, there a smooth, lumbering sea cucumber. The sea is a dazzling designer, never failing to knock you dead with colour, form and kinds of movement.