Rauma Theatre is the city's main stage, close enough to Old Rauma to fit into an evening after wandering the wooden streets. Its programme is mostly for Finnish-speaking audiences, but the building and local cultural role make it more than just another municipal venue.
For most visitors this is a calendar-dependent stop: worthwhile if a performance, festival event, or special production lines up with your trip. Otherwise, note it as part of Rauma's living culture, a reminder that the UNESCO old town is still a working city centre rather than a museum set.