A small nature reserve.
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Kayak rental open from the beginning of June until the end of August every day. In May and September on demand. Guided tours, trips and courses are also possible.
Tammisalon kanava
The canal was dug in 1762 by the owner of the Herttoniemi manor to provide a shortcut for fishermen from Porvoo to the Helsinki Market Square. Before that it was a natural strait, through which Russian warships attacked Helsinki during the Greater Wrath. It was filled in 1794, but was re-opened as a local sight in 2001.
One of Helsinki's modern cultural centers hosting various galleries.
Kirsikkapuisto, Roihuvuoren japanilaistyylinen puutarha
Two adjacent Japanese-style parks in Roihuvuori. The best time to visit is in the spring during the cherry blossom when a traditional Japanese hanami is celebrated.
At 86 m, Cirrus was the tallest building in Finland when opened; with Majakka finished, it's not even the tallest in Helsinki, but still a notable landmark in Vuosaari. There were plans to make the an observation platform of the highest floor, which weren't realized.
Vartiokylän linnavuori
Ruins of a medieval fortification.