1. Visit the charming medieval Kastro
Kastro is considered the most picturesque village on the island. This historic settlement has been inhabited continuously since the prehistoric period and was once the capital of Sifnos. Its unique past has led to its current beauty, characterized by narrow streets, medieval fortifications, old mansions, and traditional two-story houses. Archaeological findings are also found around the area, including the ruins of the ancient acropolis, lending the village further historical intrigue.
Built atop a rocky cliff on the island's eastern coast, Kastro boasts some of the best scenic viewpoints in all of Sifnos. With an advantageous view of the surrounding villages on one side and a beautiful backdrop of the Aegean on the other, it is truly a must-not-miss destination.