Midsummer’s Day (Juhannus) is the most important annual event for Finns. People leave cities and towns for summer cottages to celebrate the longest day of the year. Bonfires are lit and lakeside merrymakers swim and row boats. Enthusiastic alcohol consumption is a key feature of midsummer partying. The Pori Jazz Festival in July is one of the country’s most popular festivals, but the Savonlinna Opera Festival, held at medieval Olavinnlinna Castle, is the most famous. Some of the best (and the most international) festivals are the most remote: check out chamber music in Kuhmo, or folk music in Kaustinen (near Kokkola). There are big rock festivals during the Midsummer weekend, and big annual events, such as Ruisrock, the longest-running of rock festivals, at Turku in July. On the lighter side, check out the Sleepyhead Day, where on 27 July the laziest person in the towns of Naantali and Hanko is thrown into the sea. Finland’s strangest event is the annual wife-carrying championship held every July in tiny Sonkajärvi.