Kórnik is a town with about 7,600 inhabitants (2018), located in western Poland, about 25 kilometres (16 mi) south-east of the city of Poznań. It is one of the major tourist attractions of the Wielkopolska region and the Greater Poland Voivodeship because of the historical castle and arboretum, which is amongst the oldest and richest collections of trees and shrubs in Poland, and one of Europe's largest arboretums.