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 Swedish the norm for written Standard Swedish is completely applicable also for Finland Swedish. Today, Swedish dialects are spoken in four different regions in Finland: Ostrobothnia, Åland Islands, Southwest Finland and Uusimaa. Swedish as spoken in Finland is regulated by the Swedish Department of the Institute for the Languages of Finland. This regulation includes the officially stated aim of keeping Finland Swedish close to the Swedish as spoken in Sweden and strongly phrased advice against loanwords and calques from Finnish, which are usually incomprehensible to Swedes. An often repeated "fact" is that the municipality with the highest proportion of Swedish speakers