The Costa Smeralda is a coastal area and tourist destination in northern Sardinia, Italy, with a length of some 20 km, although the term originally designated only a small stretch in the commune of Arzachena. With white sand beaches, golf clubs, private jet and helicopter services, and exclusive hotels, the area has drawn celebrities, business and political leaders, and other affluent visitors. Costa Smeralda is one of the most expensive locations in Europe.