You can find all information about public transport on the following Bilbao Tourist Office page:
Parking your car is rather expensive in Bilbao. These are some resources we collected to help you find a suitable parking space:
If you are going to take more than one or two journeys on public transit, a CreditTrans card would be a good investment. It can save you up to 50% over buying single tickets. It is valid on all the municipal transit systems in Bilbao, and most (soon to be all) of the provincial transit systems in Bizkaia. It's a pay per ride card available at all Metro and Tram stations in denominations of €5, €10, and €15. It's also available at many newspaper stands. Individual tickets cost from €1.20 upward.
The Metro Bilbao was designed by Norman Foster. It's a single line metro within Bilbao, splitting into two lines after San Inazio station. Line one runs from Etxebarri to Plentzia; line two from Etxebarri to Santurtzi. Trains run every couple of minutes at peak hours. Tickets cost from €1.40-1.60, depending on how many zones your journey covers, or a daily card is available for €4.
This is a tourist visit card for Bilbao that contains public transport and free entry to many museums and sightseeing attractions. The BilbaoCard’ can be purchased directly at the various Bilbao Tourit offices in the City or on the Internet.
For more information, please see the BilbaoCard page of the Bilbao Tourist Office.