Over 70% of the earth’s surface is covered with water and the allure and mystery of the underwater world has always inspired the human imagination. Diving has been taking place since primitive man foraged for food in the sea but was limited because as you descend the water pressure increases and squeezes your chest and lungs. To ensure you can inhale and exhale the air you breathe also needs to increase in pressure. The first sophisticated, lightweight diving set was developed in 1865. In 1914 the first ever underwater video was recorded and for the first time non-divers could see the underwater world.