Dolphins, stingrays, sharks, mantas – I have swum or dived with them all. But swimming pigs? Really? Yes, they exist, and you can take a boat trip out to the tiny coral cay where they live and swim with them, as I discovered on a recent Bahamian golfing trip. I’m still smiling at the memory of paddling with the feral porkers in the clear, aquamarine Caribbean waters, trotters flailing, snouts above the waves, ears pricked up like hairy radar antennas and tails resembling curly little rudders.