For Bilbao, I find this for the port of Bilbao.
http://www.whatsinport.com/Bilbao.htm#location it doesn't say what berth you will have, but says the Voyager is there on your date.
When I was there (back in 2004) we did have a free shuttle into town that dropped us off within walking distance to the Guggenheim.
Editing to say here's the other port, with Voyager there on the 26th
http://www.whatsinport.com/La-Coruna.htm
