¿What is, exactly, Vantaa Alvariolinna?; ¿is a collection, open to the public, of live animals?; ¿where is?; ¿is actually open or closed?
Translated the site using Babel Fish !! Aquarium Castle is Finland's biggest aquarium open to the public Thursday, Friday & Saturday but although trip advisor has it as a Zoo it looks like a commercial Aquarium where you can buy stock?