Discovery Bay is a residential development in Hong Kong, on Lantau Island. Discovery Bay may also refer to: Discovery Bay (Antarctica), a bay in the South Shetland Islands Discovery Bay (Australia), a bay straddling the border between South Australia and Victoria in Australia Discovery Bay Coastal Park, a protected area in Victoria (Australia) Discovery Bay Marine National Park, a marine protected area in Victoria (Australia) Discovery Bay, California, a community in the U.S. Discovery Bay, Jamaica, a town in Jamaica Discovery Bay, Washington, a community and bay in the U.S. A planned (but never built) land at Disneyland See also Disco Bay