Coral Island is a fictional setting featured in the novel "Coral Island" by R.M. Ballantyne, published in 1858. The story follows three boys—Ralph, Jack, and Peterkin—who are shipwrecked on a deserted island in the South Pacific. They explore the island, encounter various challenges, and learn to survive using their resourcefulness and teamwork. The island is depicted as a tropical paradise, filled with lush vegetation, exotic wildlife, and beautiful beaches. The boys engage in activities like fishing, building shelters, and exploring the island's natural wonders. Their adventures highlight themes of friendship, adventure, and the spirit of discovery.