If you are in the area then you just must go and see the extinct volcano. Its only 5.8 euros to go up by train and free to walk back down but you can pay for a return trip as well. Good info about the Roman Temple on top and about the volcano. It really is a must if you are staying anywhere within 50miles of the Dome. Also there is a another volcano this time with crater close by with masses of parking with picnic tables and an easy walk up. I think its called Piou and is also a must if you have the time.