On Sunday I visited Cala Sarraina, a small, easily accessible bay between Costa Paradiso and Vignola on the north coast. Although I programmed the adress into Google maps, it was signposted all the way from the main road and easy to find. Parking as free.
Like most beaches in August in Sardinia, it was busy. Peddalos and sun loungers were available to hire but unfortunately there was a strong maestrale wind make it a bit wavy, the water was quite shallow for the children and if there had been no wind it would have been ideal. Also the sand is not suitable for sand castle making as it is a very large red sand.
You should be very careful on the north coast as when there is a maestrale wind the under currents can be very strong.
There are rocky ares to each side and a track which leads up to the cliffs, we took a walk, there were some beautiful rock formations and great views.
There is also a beach bar and restaurant so it’s pretty well equipped for a small bay.