Greece
The Pieria mountains are in the midland of Greece, full of forests of beech, oak and fir trees. Just beside the well-known Mount Olympos. They are a great place for hiking, bird watching, sky watching, flora and fauna, mushroom collecting, skiing and lots of other activities.
The hotel I recommend is Semeli mountain resort, which has a great view. It's only 90 minutes drive from Athens.
www.semeliresort.gr/
Elatochori Pierias, Kehagia area
+30 23510 82992
Google map: bit.ly/cBZatU