Naantali is a municipality in the region of Lounais-Suomi (Southwestern Finland) in Finland. Naantali (Swedish: Nådendal) is a town in south-western Finland, known as one of the most important tourist centres of the country. The municipality has a population of 19,250 (31 January 2019).
One of the oldest towns in Finland, Naantali was founded around the mediaeval Brigittine convent Vallis gratiae, the church of which still dominates its skyline. The charter was signed by King Christopher of Sweden, the then ruler of Finland, in 1443.
There 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.