We arrived in Biarritz by bus (from San Sebastian). Dominique's is an easy 15 min walk (with backpacks) from the bus station (stop). Leaving, it was shorter walk to catch bus No. 8 to the the Biarritz train station.
The best thing about the place is that it's just one minute to the cliffs that overlook one of the surfing beaches. And there is a bar....Sunset = more than awesome from this spot.
Walking to Centro takes about 15 minutes.
Dominique is a great communicator "does what he says he will do"..