Zero Point airport can be reached by car in 1 hour of time. Alternatively you can use the Interbus service that connects the airport of Catania to Syracuse and stops 100 meters from ground zero, in Via Augusto Von Platen in front of the parking valet. From the station of Catania train, you get off at the Syracuse station, walk a few meters walk to the bus station in Corso Umberto and from there take the AST bus line 1 with stop ever in Via Augusto Von Platen. More info and links on times and tickets on puntozerosiracusa site.