Спереводом have you ever been to an underwater garden? then welcome to the great barrier reef the largest collection of coral reefs inthe world .there are corals of different shapes and sizes and bright colours .they grow on the ocean floor in warm clean and clear sea water .bright fish swim everywhere.reef fish have amazing colours and patterns which help to protect them from their enemies .the great barrier reef is also full of unique plants and animals. thousands of tourists come to australia to dive down and explore the fantastic underwater garden .