This guidebook contains route descriptions for 41 challenging day walks in the mountains of Greece, namely the Pindhos Range, Athens and the east coast and the Peloponnese areas. The Pindhos Range accounts for the vast majority of them. They can be put together to form continuous multi-day treks but they demand a high degree of commitment and physical ability due to their remoteness and difficult terrain. Most of Greece is mountains, not the islands and seaside that many visitors tend to think of. They are beautiful mountains: rugged, undeveloped, remote and yet accessible. Alpine pastures soften the harshness of the crags, forests fill the ravines, and springs and rivers abound - a startling contrast to the baking lowlands. There is a rich and rare variety of wild flowers and butterflies.