Did 10 dives over 5 days with Nautilus Diving https://www.divesardegna.com/. Owners Vinnie and wife Stephanis arranged taxis to and from Olbia airport to our accommodation (which they also fixed for my non diving wife and myself). This was the third time we had been over 5 years. Enjoyed the ambience and the diving on all trips. Palau is a very relaxed, chilled out town with some nice restaurants.
Diving was great. U/W temperature range took me by surprise ranging from 15-20 degrees.
On the last day we visited 'grouper city' just off Corsica. It is one of my favourite dives there.