Gavan Hennigan is from Galway, Ireland, where he lives. For his day job he works as a Saturation Diver in the North Sea, and this involves living in a pressurised chamber for 28-days at a time. He spends between 100-150 days a year under pressure to depths of 200m. He’s also the part owner of Irish clothing company Emerald Surf Wear. You can follow his amazing travels here.