We stayed in a room overnight on our way to the South of Corsica from Bastia. Conca (Tarco) is a small, seaside place with hotels and a few restaurants. Be sure to go to Tarco on the coast and don't let the satnav take you inland to Conca as ours nearly did. The Hotel San Pieru is a motel really with holiday camp style accommodation which is clean if a bit basic. We ate outside the hotel in a local restaurant and there was a choice of about 4 places to eat in September, probably more in high season. There is an outdoor swimming pool, if you are staying longer than a one night, and obviously the beach. It is probably a good, cheap and cheerful place to stop if you have a family and want to use it as a base to explore the south of Corsica.