On a budget, Skaros Rock Hike still earns its price.
Free
A genuine little adventure rewarded with some of the most dramatic, crowd-free caldera views on the island, and a sunset perch most tourists never reach. The catch is a steep, loose, exposed path that's tough in the heat and not for those uneasy with heights or rough footing. For able walkers, the best free thrill on the rim.
Skaros Rock below Imerovigli was the Venetian-era capital of Santorini, first fortified by the Byzantines in the early 13th century ('La Roka', 1207). · en.wikipedia.org
The trail starts at Agios Georgios church in Imerovigli; the walk to the promontory and the cliff-base chapel of Panagia Theoskepasti involves several hundred steps each way. · alltrails.com