In 2015, scuba divers made exciting underwater discoveries, highlighting that only about 5% of the oceans have been explored. One significant find was the ancient city of Tartessos, which dates back 5,500 years. Divers also uncovered an impressive 10,000-year-old forest and a Stonehenge-like monolith off Sicily’s coast. These discoveries demonstrate the vast potential for new scientific and archaeological insights beneath the ocean surface.