You can have easily a printable map of the itinerary by using www.viamichelin.com.

Just insert your departure details end the following arrival details:

address: via cà del sale 9
city: ameglia
country: italy

If you arrive by car, highway A12 exit is Sarzana or Carrara.

If you arrive by train, the nearest railway stations are Sarzana or Carrara (see the official website of Trenitalia).