Cycling from Bilbao Airport to near the Guggenheim

I didn't cycle from the airport to the Guggenheim, but I started my Camino from Bilbao. There's some hills and stuff, but really nothing to worry about, since that's the same stuff you will be encountering on the Camino anyway, or you can take the bus from the airport and it will drop you off next to the Guggenheim. There are places to rent bikes in Bilbao that I found were cheaper than most other places I found online. Good luck and buen camino.