Malaga - Did the hop on hop of bus tour which gave you an overview of the city but wouldn't go back
Barcelona - As this was our third visit to the city we had already seen some of the major sites but it is a facinating city that you can always find something different to do. Again used a hop on hop off bus which was much better value
The port of Livorno is not recommended for local sightseeing!
did clear but still too misty to see africa!
enjoyed the tour via private taxi which took us to all the major sites[including Barbary apes as head decorations!]
Vigo-last port of call and a pleasant city close enough to walk off ship to city centre for shopping trip