The mythological figure famous for his labors and adventures across the sea is Hercules, known as Heracles in Greek mythology. His legendary Twelve Labors showcase immense strength, bravery, and perseverance, as he faces terrifying challenges like slaying the Nemean Lion and capturing the Golden Hind. Hercules' journeys reflect themes of redemption and heroism, solidifying his status as one of the most celebrated heroes in mythology.