Very limited places to fly in this area.
For instance, Geoportail shows some unrestricted space around the edges of St. Jean de Cap Ferrat but the local tourism office will tell you no flying at all on that peninsula.
I remember looking at the maps around Monaco, the only open space was up towards the golf club, looking down at the principality in the distance. I went up there and took pictures but didn't fly.
Likewise, St. Tropez there were some unrestricted space on the edge of the coastal road towards the Citadelle and the cemetery there but really no place to pull over and launch/land.