Turquoise waves glide over the surface of the sea, creating an effect of light and colours that is remindful of crystals. The white sand covers the beach, creating a glaring contrast with the water hues. The bay of Porto Istana is located at the feet of Capo Cesaro, a granitic promontory in the Murta Maria neighbourhood inside the gulf (and the territory) of Olbia, twenty minutes by car.
The bay is made up of four beaches, separated from each other by small rocky strips. It is surrounded by pink granites and outlined with green Mediterranean bushes: cistus, giant strawberry trees, ericas, evergreen oaks and olive trees. All four little coves, identified by ordinal numbers starting from the north, are characterised by a sea bottom of very fine white sand that gradually dives into the emerald colours of the sea, which makes them particularly suitable for children.