Hi we’re on QE on 9th October with same itinerary. We have booked a trip to Aix en Provence via Cunard (Toulon) as thought it was a good price & also wanted to visit here. I would say that France has great train links & you might want to look into getting a train to St Tropez which is very pretty. Also in Livorno we have booked the trip to villages/wine tasting. For Pisa & assume you want to go to leaning tower this is “out of the way” & has a few restaurants around it but is in quite a residential area. I’d recommend going to Lucca which is a beautiful walled city, very atmospheric & great restaurants, very walkable on yr own. I think there is a trip there via Cunard. Ibiza we plan to do on our own as can just walk the old town & have an early dinner as think we leave late evening. Valencia is a great city & you can get the local train from port (its about a 20 minute walk from dock area) into the city. Lots of things to see/do. We booked a walking tour (privately) last year which was great. Toursbylocals is a good one to look up. Alternatively if weather great walk along the beachfront to a restaurant for paella.