The Savonlinna Opera Festival, also known as the Savonlinna Festival, is an annual opera festival that takes place in Savonlinna, Finland. It is one of the largest and most well-known opera festivals in Europe, and attracts a large number of visitors from around the world. The Savonlinna Festival is held in the summer, typically in July and August, and features a wide range of opera performances, as well as other classical music and cultural events. The main venue for the festival is the Olavinlinna Castle, a medieval castle located on an island in Lake Saimaa. The castle provides a unique and atmospheric setting for the opera performances, and the festival is known for its high-quality productions and the use of innovative stage designs and technologies. In addition to the opera performances, the Savonlinna Festival also includes a variety of other activities, such as lectures, exhibitions, and outdoor concerts.