It brings together the two ‘souls’ of the Costa Smeralda, as it is both glamorous and unspoilt at the same time: in fact, it is considered the ‘wildest’ beach of the symbolic location of high-end tourism on the Island. However, Petra Ruja, in the coastal territory of Arzachena, also has another distinctive feature, as its name, which means ‘red stone’, indicates: it is dotted with reddish-coloured rocks and granite pebbles. The beach, about 250 metres long, is in a bay with two promontories on its borders that determine its crescent shape. The sand is white and soft, while the transparent sea will surprise you with its shimmering colours, ranging from light blue to turquoise and glistening emerald green, typical of the Costa Smeralda.