via Athens
You can drive from Athens via the national road to Chalkida and then drive North .
You can drive from Athens via the national road to the port of Arkitsa and then by ferry boat via the line Arkitsa-Edipsos. Ferry service phone numbers are: Arkitsa: 22330 91 121 & Edipsos: 22260 23 330
via North Greece
With the ferry boat line of Glifa-Agiokampos. Ferry phone line, Glifa: 22380 61 255 & Agiokampos: 22260 31 245
Also you can travel via bus:
Athens bus service : 210 83 17 153 & 210 83 17 163,
Evia bus service : 22260 22 250, Thesaloniki bus service : 2310 512 121