Sardinia. What to do? Where to go?

[Blib]

Early next month we're spending a few days at a friend's apartment in Cagliari. I was wondering whether the PH Massive has any tips on where to go, what to see and possibly what to avoid?

TIA.

[Blib]

Thanks for that.

I'm looking for whatever there is, TBH. High or low brow. I suppose I'd like to know the lie of the land, as it were.