Here is a list of hiking paths in Evia. Most of these paths are from Paths of Greece.
Around Xirovouni (Evia island)
A nice path, with amazing views, around one of the highest mountains of Evia island, Xirovouni. The path has some difficult passages and should not be attempted without a GPS.
Agali Gorge (Evia)
A beautiful path that descends one of the gorges of Dirfy Mt. in Evia island.
Agios Dimitrios Gorge
Dirfy Mt. : Vlachon path
An unknown path in the northern slopes of Dirfy, the highest mountain of Evia.