By air - Fly to Naples and either hire a car or take a train.  Alternativly fly to Lamezia in the South which is closer but the flights are restricted.

By Train - Either Sapri or Maratea stations are close by and fast trains from Naples to Reggio Calabria stop at both.  It's between 1.5 & 3 hours by train and costs between €50 & €9.  It is strongly advised to book your selves onto a Eurostar from Naples (1.5 hours, €50) - you will have a seat reservation and airconditioning, both essential at this time of year.  You must do this well in advance on-line as they fill up book here

By Car - it's around 3 hours drive from Naples airport.  You pass the Amalfi peninsula and Salerno then keep heading for Reggio Calabria and the South.  Turn off at Padula and pass Paestum and Bonabitacolo and go on down to Sapri.

N.B. you will need at least one car at all times as Villa Ligea is in the countryside, there is little local public transport and you are not in walking distance of food shops.