We visited Marvão by car. The access is good and so was parking, but twice we visited we always visited on week-days, so parking was no problem, even though it was free of charge. Probably on week-ends and high season there will some more difficulty in easily parking your car.
Once in Marvão, there is no other option and to park and walk. Although I've seen some cars inside, I wouldn't recommend it, as walking the cobbled narrows streets is so pleasant. Be sure not to miss it, but wear comfortable shoes.
Very little public transportation is available. Go to: http://www.rede-expressos.pt/ select horários (schedules) and choose your departure point (ex: Lisbon) and wait for it to reload. Then choose arrival point Marvão and click the ida e volta box (return ticket).
You have the express coaches prices and schedules.
during the week you have only morning buses to come BACK from Marvão (07.45h) so, it is advisable to return on a Sunday (you have another bus at 15.45h).
buy your return ticket at departure because the coach ONLY GOES UP THE HILL TO MARVÃO IF THEY HAVE PASSENGERS TO PICK UP ALREADY BOOKED!!!!!!!!
rent a car
rent a taxi - Mr Luis Alberto lives down at Castelo de Vide and has experience dealing with foreign visitors: his cellphone number: 00351 919222060
We had a long day on this leg of the trip, putting almost 400 km (250 miles) on the rental car as we drove from Evora to Castelo Branco, while at the same time visiting the mountaintop forts of Monsaraz and Marvao, throwing in a telephone stop in the small village of Reguengos de Monsaraz and doing some shopping for food and pottery in Redondo!
Here, our little Fiat Punto is at rest in a farmer's lane a long way south of Marvao, as we enjoyed a quiet picnic lunch of bread, cheese and wine earlier in the day. It was a great little car, just barely big enough to store our two suitcases in the rear-end and small enough to negotiate all the little village streets that we eventually travelled down!