Coimbra has two main trains stations, known simply as A and B. This is a picture of Coimbra A located down by the river. There are six daily train links with Lisbon and the trip takes about 2 1/4 hours. Four daily trains run to Porto and take about 1 1/4 hours.
We had a car, so we didn't take the bus but this is what the local bus looks like if you need a ride. You can pay the driver when you get on and there are plenty of stops around town.
By train from Porto or Lisbon. You'll have to change train in Coimbra-B. The central railway station is Coimbra.
By foot or by bus.
Well, Óbidos is not Coimbra, in fact is closer to Lisbon, than Coimbra, so this is a map of the region. See also the other map in this chapter to see how to get here from Lisbon.