Hi - I'm running through a few options from this thread but thought I'd throw this out there in case anyone has a hot tip and might reply/PM me
We're going one way from Athens (Greece) to Thessaloniki either from evening of May-29 or early morning May-30 to drop off on either May-31 or June-1. The options gives us flexibility and timing benefits (so aren't looking at trains, etc) and we have flights (so won't be returning to the original location).
Happy days!