Metsäjärvi Nature Trail is located near the village of Kankaanpää, to the south-east of lake Köyliönjärvi.
The nature trail begins at the Kaarnikka Wilderness Centre. The trail winds through covered forests and eventually leads to a shelter and campfire site on lake Metsäjärvi’s shore. A map of the route can be found here.
The length of the trail is about 5.5 km but this can be shortened if you turn back at the shelter.
The starting point at road Kaarnikantie has an information board.