The porto di Catania is a very simple port and doesn't offer much of anything for tourist to do here.
Other than the small duty free shop, I did see 1 bar and a facility that is probably utilized for day events such as conferences, ceremonies, etc.
The city center is said to be about a 15 minute walk. For the cruisers, there was the option to buy a round trip shuttle ticket to the city center for 10 euros. read more