Try a first light excursion to conquer the crowds, watch light spill over the caldera
https://charlieprtk094.almoheet-travel.com/best-santorini-tours-from-cruise-ship-short-on-time-big-on-sights-1
Try a first light journey to overcome the crowds, watch gentle spill over the caldera, and catch serene streets in the past the island wakes up.