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A 3-km-long nature trail goes around a shallow and very eutrophic lake Luolalanjärvi, which is one of the most important bird sites in Southwest Finland. Two bird watching towers. Entrance from Järveläntie road. Bird waching tower is suitable for disabled but the trail is narrow and partially on duckboards.
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A small museum in two old wooden buildings. In Humppi house you'll see some archaeological findings and visit their changing exhibition. In Hiilola you will visit a 19th century bourgeois home and their garden as well as more modest Sau-Kallio house. The museum shop in Humppi sell some Naantali themed stuff and books.
Vanhakaupunki
Naantali has an attractive wooden old town. Colourful old buildings, narrow alleys etc. Most buildings are people's homes so please do not enter the yards.
Kuparivuori is a hill next to the old town with a sudden, tens of meters high vertical drop down to the Naantalinsalmi strait. No safety equipment so mind your steps! Awesome view towards the sea and marina. Rakkaudenpolku walkway climbs to the hill from Raatihuoneenkatu and Kuparivuorenkatu streets. The walkway's name means Path of Love as back in the 19th century young lovers climbed up here to cuddle as it wasn't socially accepted in public. On top there is also a small WW 2 era aircraft monitoring bunker.
Naantalin kirkko
Built in 1443–1462, this is the oldest standing structure in the city and among the oldest ones anywhere in Finland. It is also the second largest medieval church in Finland. The crucifix was made in the times of the convent. Outside the church there is still a piece of the stone fence and a well as a remnant of the convent.
Popular sand beach next to the old town. Locker rooms and showers.
Cosy wooden lookout tower built on top of former water tower in the park surrounding the church. Nice view of the marina and the Moomin World. Narrow stairs which are not suitable for disabled.