Offered only on Friday evenings, the nocturnal experience is totally unique. You'll see marine life that you normally don't see during the day. You will have a torch (flashlight) in your hand, making colors more vivid that during daylight hours. Depending on water conditions you may even see bio-luminescence in the water, leaving blue streaks of light. Every dive is different; you may even see coral that only blooms at night. See fish in their sleep mode. Sea Trek is a completely safe activity.