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In the summer, rent a bike or walk to the beach in Tuira on the north side of the river Oulujoki, a popular place with locals, passing through Ainola park and over the dam on the way. From there head eastwards, crossing back to the south side of the river and onwards to Värttö. Visit Koivurannan kahvila in an old house by the river, Kasamintie 51. Then head back to the centre for a total 8-km trip or take the bus number 7, 9 or 10 back to the centre.
Oulun Taidemuseo
Two-storey museum with a wide variety of modern artwork. Around 8 exhibits a year. Plenty of information in English, except for small, temporary exhibits.
Tiedekeskus Tietomaa
Closed for renovation until 2026 The oldest science museum in the country, mostly kinematic and interactive, great for pre-teens but plenty for adults to enjoy. It is partially located in the former Åström leather factory, and you can ride the glass lift up the 19th-century brick water tower.
Oulun linna
The castle was damaged by attack in the 18th century and finally blown to pieces in 1793 when lightning struck the gunpowder magazine. What you see now is the maritime observatory built on the ruins; it's set in a pleasant park, and you can climb the tower for views. There's a café (Tähtitornin kahvila) within. The cellar (same hours) displays info on the castle - mostly in Finnish, but there's more in the Northern Ostrobothnia Museum.
Oulun tuomiokirkko
Neoclassical Lutheran cathedral built in 1832 after its predecessor burned down. The architect Carl Ludvig Engel also designed the buildings of Senate Square in Helsinki.
Oulun Automuseo
A car museum with 40 cars and 20 motorcycles and some traffic related paraphernalia on display. A couple of really interesting vehicles like the largest car ever built in the Nordic countries (a truck for a dam company), the remains of a Ford "killed in action" during World War II and a "motorcycle" where the rider sits inside a large wheel. The car museum also has a restaurant open for lunch.
Hupisaaret, kalatie
The beautiful park of Hupisaaret (lit. Fun Islands) is a lush area with little paths and bridges crossing beautiful little streams. The longest fish path of Finland, 750-m- and 64-stair-long fish path is on the northern part of Hupisaaret park. Take a picnic or just stroll around the renovated park where you can also find the soon-to-be-mentioned Northern Ostrobothnia Museum. Tietomaa and Oulu Museum of Art are also found near the park.