The Bermuda Fireworm is unremarkable during the day. It is small, reddish and covered in little bristles that sting if you touch them. When it gets revved up, however, something remarkable happens. In the summer months, on the third night after the full moon, 56 minutes after sunset (and yes, it really is that exact), the worms go bonkers. Females start swimming up from the bottom of the sea, ready to mate and literally glowing with passion. Their bioluminescence switch is set to ‘max’ in a bid to attract a mate. Soon enough, the males hurry over to join the ladies’ neon circles, making the ocean spark with green light. If you want to check it out, try Ferry Reach Park.