From the south: Take the A1 motorway and then the A11, then exit at Capannori.
At this point head towards Lucca, Borgo a Mozzano and Fornaci di Barga, following the signs for the SS 439 road. Once on this road, follow the signs for Barga on the SS 445 road.
From the north, take the A1 motorway and then follow the signs for Genoa-Livorno, Viareggio and finally Lucca. Exit at Lucca east and follow the signs for Lucca, Borgo a Mozzano, Fornaci di Barga and finally Barga, always along the SS 445 road.
From Lucca or Pisa Centrale. More information about costs and times on the Trenitalia website.
The nearest railway stations are Castelvecchio Pascoli and Barga Gallicano
With Vai Bus from Lucca, VaiBus stop at Castelvecchio Pascoli.
If you are already in Garfagnana, there are obviously more options available to reach Barga by bus: Q59 from Pieve Fosciana, Q60 from Castelnuovo and Q77 from Castelvecchio.
For more detailed information on times and routes by bus to and from Barga, you can consult the following website: http://www.lucca.cttnord.it/
There is a Transfer Service available upon request from the Tuscan airports and train stations.