Naantali are some important points of interest in the city, such as the Moomin World theme park on the island of Kailo. Naantali Spa Hotel, the largest spa in the Nordic countries, and the Naantali’s medieval convent stone church. The city's popularity as a tourist venue is highlighted by the fact that the official summer residence of the President of Finland, the Kultaranta estate, is located on Luonnonmaa. The archipelago sea boat traffic is handled by S/S Ukkopekka. Old steamship cruise Naantali-Turku-Naantali. Naantali hosts an international music festival every June, and the traditional Sleepyhead Day carnival in July. In addition to
Finland poet Johan Ludvig Runeberg and Zachris Topelius. After Finland became independent, there was a rise of modernist writers, most famously the Finnish-speaking Mika Waltari and Swedish-speaking Edith Södergran. Frans Eemil Sillanpää was awarded the Nobel Prize in Literature in 1939. World War II prompted a return to more national interests in comparison to a more international line of thought, characterized by Väinö Linna. Besides Kalevala and Waltari, the Swedish-speaking Tove Jansson is the most translated Finnish writer. Popular modern writers include Arto Paasilinna, Ilkka Remes, Kari Hotakainen, Sofi Oksanen, and Jari Tervo, while the best novel is annually awarded the