The Great Barrier Reef is home to around 300 sand and coral cays, and they make for quite the unique beach day destination 🏖️  🎥: @LISA KELLER 🌺 TRAVEL + UGC 📍: Mackay Coral Cay, @Tourism Port Douglas Daintree, @Queensland, Australia #SeeAustralia #ComeAndSayGday #ThisIsQueensland #PortDouglas ID: An aerial of two people on a large white sand cay surrounded by clear turquoise water with a small boat parked in the shallows.