With untamable and wild beauty it rewards us for the relatively difficult  route towards the spring of Stynx. Access is feasible only by hiking. The enthralling ride to meet Thetis, who dipped her son Achilles in the river’s waters and made him immortal, to approach the gate of Hades where the Gods gave their most important vows is more than compensating. Hikers meet a waterfall in an altitude of 2100m at mount Chelmos the waters of which end up at river Krathi.