Went on tour with Thomsons to Sorrento (Do it yourself). Very pleasant and informative guide. Reasonable lunch in local restaurant with Thomsons deal. Plenty time to explore. Naples seemed to be intimidating to visit.
Did not go on any tour as had visited Rome before. The tours were too expensive.There were kiosks tours outside the port offering less expensive options by express train etc. Enjoyed walking about town and bought leather bag at reasonable price.
Loved Ajaccio. Very chic. Again did not opt to do tours, but enjoyed visiting Napoleon's museum right in town centre. Fellow passengers were annoyed they had missed this and wondered why Thomson did not point this out on the daily info sheet. Also enjoyed going for swim in the sea and were grateful for the use of Thomson's beach towels. Local market good too.
Palomos (Barcelona). Did not do tour to Barcelona as we have visited before. Went on Dali Tour. Fascinating but not enough time as tour was only 4 hours and it was 1 hour each direction by coach. Would have liked more time in museum and also in the lovely town selling Dali gifts (not available any where else.) Guide agreed with me. Palomos was pleasant town.