El Do ‧ ra ‧ do BrE AmE , Eldorado /ˌel dəˈrɑːdəʊ/
a place of very great wealth, especially a place that people travel a long way to find, or an imaginary place that does not really exist. El Dorado comes from the ancient story of the king of a South American ↑ tribe who covered himself in gold dust and dived into a lake. Some people believed that the king’s city, El Dorado, really existed and tried to find it.