This one's really high - around 2500m above the sea at the top of the Psiloritis highest point. To catch it you should know what you are doing and have some experiences in mountain climbing. Take good shoes, a tent and enough water with you! You can either start from Fourfouras or from Zaros through Alm Kolita to the top of the mountain by way of the "E4" european trekking-way. If you start from Fourfouras ask the owner of the restaurant 'windy place' about the mountain and how to reach the top.
Since Aug/13/2005 the cache has new coordinates (not very far from the old position). Thanks to dLBR for replacing the lost cache by a brand new one!
Good luck! :)