Solinari Spring, written in Greek as Pigi Solinariou, is a trail landmark in the marble-quarry landscape between Dionysos and Mount Penteli north of Athens. It is not a staffed attraction with a ticket office or fixed opening hours. Hikers encounter it as part of routes that combine forest roads, marked paths, old quarry infrastructure and the Open-Air Museum of Traditional Quarrying Art. Its interest comes from the relationship between water, mountain travel and a landscape worked for marble over centuries.
Recent user-recorded routes provide useful orientation but are not official guarantees. A 2025 out-and-back track from Dionysos to the spring and quarrying museum was approximately 5.4 kilometres with about 215 metres of ascent. Other circular tracks are closer to nine kilometres and involve more climbing. The Salomon Mountain Cup Penteli route has also passed the spring area, confirming its continuing use by trail runners. Distances vary with the starting point and diversions, so hikers should use a current map and not rely on one archived GPS line.
