GREEN ISLAND Take a boat trip to Green Island, a small coral atoll approximately 30 kilometres east of Cairns, surrounded by fringing coral reef. A small resort with cafe, shops, swimming pool and dive shop is the hub for both day-trippers and overnight guests. Try scuba diving or snorkelling, or, for something completely different, helmet diving. Don a helmet, which looks like the old-fashioned pearl diver helmets but with a modern upgrade, and walk across the ocean floor with schools of fish swimming around your head. Keep an eye out for serial photo bomber Gavin, a friendly parrotfish who loves his photo taken; he’s famous for his toothy grin. See greenislandcairns.com.