
thumb|Alexander Battery in Vallisaari thumb|Finnish coast guard patrol craft Merikarhu moored at Vallisaari island. thumb|View from Vallisaari Island to Suomenlinna and continental Helsinki. Vallisaari () is an island in Helsinki, Finland. It is located between Suomenlinna and Santahamina.
thumb|Alexander Battery in Vallisaari thumb|Finnish coast guard patrol craft Merikarhu moored at Vallisaari island. thumb|View from Vallisaari Island to Suomenlinna and continental Helsinki. Vallisaari () is an island in Helsinki, Finland. It is located between Suomenlinna and Santahamina.
The island has some ponds, and it was first known for hundreds of years as a place where sailors could take fresh water. Some fortifications were built on the island, but while neighbouring Suomenlinna became the main sea fort for Helsinki, Vallisaari was a supply point where cattle were grazing and firewood was collected.
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