Diving in the dark can reveal a whole new world – and often a more colourful and thrilling one at that! Marine animals behave differently as they hunt or try to survive being hunted. Coral polyps burst out like blooming flowers, feather stars unfurl their stinging cells like branches bending in the wind and the common octopus flashes a kaleidoscope of defensive lights. Then BANG - you are now on the receiving end of the famous middle finger salute following a, your tank/his head collision! See our guide below on how to avoid being a klutz and become a responsible night diver.