Best wind is from NE (sideshore from left) to E (kind of onshore depending where you stand on the beach), getting quite gusty there when coming SE (the island 'Tavolara' is in the wind direction causing gusts).
North of La Cinta, approx. 8 km south of Olbia. Follow the S125 southwards from Olbia, until you come to 'Le Vecchie Saline'. Turn left towards 'Punta delle Saline'. Parking possibility directly behind the beach (follow a little boardwalk to cross the salt lake) to reach the beach.