Ąžuolynas (literally, "Oak Grove") is a public park in Lithuania's second largest city, Kaunas, in the Žaliakalnis elderate. The park covers about 84 hectares and is the largest urban stand of mature oaks in Europe. Vydūnas Alley serves as the park's northern border. It is a popular recreational destination for the inhabitants of Kaunas. Most of its trees are oaks ranging in age from 100 to 320 years old, but it also holds linden, birch, and maple trees.