The Costa Smeralda is a luxurious stretch of coastline located in northeastern Sardinia, Italy. Known for its crystal-clear turquoise waters, white sandy beaches, and dramatic granite cliffs, it is one of the most exclusive and glamorous destinations in the Mediterranean. Developed in the 1960s by Prince Karim Aga Khan, the area features high-end resorts, designer boutiques, and world-class marinas, attracting celebrities, yachters, and elite travelers from around the globe.