Kurjenrahka is a 29 square kilometre wide nature reserve known as the domain of cranes. With its bogs and forests Kurjenrahka is well suitable for day hikes. One of the best known sights in Kurjenrahka is Kuhankuono, an old boundary marker of eight municipalities. The part of the Kurjenrahka bog area that belongs to Turku is a sector facing directly south from Kuhankuono. There are altogether around 150 km of hiking trails in Kurjenrahka which means the area is well suited for long hikes.
The Kurjenrahka national park is the widest and most versatile protected area in Finland Proper. In the Kurjenrahka national park the wide bogs in their natural states and the old primeval-like forests get to develop in peace.