Quimper   The impressive Cathedral town of Quimper and its surrounding countryside offer a wealth of sights and excursions. A settlement has existed on this site since the first century B.C. and a walk around the town gives a feeling of wandering through time. The town is dominated by the fine Gothic Cathedral of St. Corentin whose building was started in the 13th century. The Cathedral offers such a wealth of architectural and religious treasures that the visitor will benefit from one of the guided tours organized by the tourist office before reviewing points of specific interest.   The old town of Quimper makes an interesting walk and there are numerous museums and gardens to occupy most interests. Quimper is well known for its ceramics industry which started in the late 17th century and which has become one of the towns most important industries today. There is a ceramic museum and a ceramics factory both open to the public.   Quimper's position at the junction of the rivers Steir and Odet makes it an ideal starting point for boat excursions and walks along the river banks. these excursions offer a wide range of attractions from simply viewing the surrounding forest to visiting the docks or chapels on the outskirts of Quimper.