the handful of most important routes. You'll find the main bus stop near the old town, at Savila. This is not the same as the intercity bus terminal which services the buses that go in and out of Rauma; there are a couple of blocks between the two bus stations.
Taxis operate widely around the city and you can flag a cab when you see one or call +358 2 106 400. As everywhere else in Finland taxis are rather expensive. Also, since Rauma is a small town, walking around the city, and especially the Old Town, is easy