An outline of Sardinian Geology, characters of Sardinian coastlines connected to geology, coastlines classification, deltas and estuaries, coastal processes: waves, refraction and diffraction of waves, long shore currents, effects of waves processes on the coastline, cliffs and rocky shores, cliff morphology and evolution, caves and arches, the beaches, beach morphology, beach sediments, provenance of beach sediments, spits, tombolos. Barrier islands and lagoons. Coastal dunes, forming and evolution of dunes, dunes stages. Sea level changes, Pleistocene glacio-eustatic movements, late Quaternary sea level changes, proxie data, records of sea level changes along Sardinian coasts. Geomorphology and cultural assets. Coastal landscape in the maps.