We are in Southern Sardinia at the moment.
Here are where we anchored on the way:
Porto Cervo - yes, we sneaked in there and found space for two anchoring yachts. We took one of the spaces, just before another cat cam in and had to turn around. Good shelter
Marmorata - protected from W & NW - sandy cove with hotel
in it. Easy entrance. Good holding
Just south of Capo Testa, on the west side. Don't know the name. Big wide sandy beach, but open to W, NW, N.
Castelsardo - East side of the harbour is just rocky, but west of the harbour is a sandy beach with good holding. A bit exposed though. Open to W NW N NE
All along that big gulf, passing Porto Torres are long sandy beaches.
Stintino. Just north of the village, south of the Forneli passage
, is a popular anchorage in about 3m on sand. Fairly protected from S to N if you position yourself well. No problem finding room.
Porto Conte - Huge bay that is a marine
reserve. However, no problems anchoring there on sand and weed in about 7m. Good protection from W and N.
Alghero - Anchored just outside the harbor in 5m on sand. Open to W, so prone to swells. Protected from NW round E to S. Nice town. Bought internet
Just north of Bosa Marina, just under Capo Maragiu, there is a little cove protected from NW - NE. 10m on sand. Nice stop if you are on your way south, with protection from NW swell.
Torre Grande in the huge Golfo Oristano. The bay is enormous and shallow, so you can anchore just about anywhere and get protection from pretty much any direction. We parked just outside the harbor Grande Torres on sand in 3m. Watch out for the two huge fish
Isola San Pietro - On our chart it says no anchoring in a big circle around Carloforte. However, we did anyway, and no one bothered us. 4m weed with sandy patches. Gets rough if there is a NW wind
At the south end of San Pietro is a small bay with anchoring in sand. We didn't stop there, as there was an onshore wind, but several yachts were anchored there. Good protection from W NW N. Sand. Just east of the two stone columns that are on all the postcards.
West of Calaseta on San Antiocco island is a bay with beach. Good holding in sand, 4-5m but open to NW.
Porto Pino, where we are now. Big wide sandy bay with easy anchoring and good protection all around except SW.
Didn't do the East Coast, so can't comment!
Hope that helps