Those who love hiking can choose out of two trails:
You can have a one our hike through the Environmental Education walking trail all along the plane forest of the Kakavoula ravine. The place is ideal for hiking in springtime or autumn. Brooks flow through the ravine all year round.
The second trail starts from the Environmental Education Museum and it goes as far as the archaeological site and the acropolis of Ancient Stymphalos. The hike can take for about an hour and a half and it is of moderate difficulty.