Try a first light excursion to overcome the crowds, watch light spill over the caldera

https://elliottwnrs026.brightsora.com/posts/santorini-day-tour-itinerary-see-the-island-s-highlights-in-one-day-2

Try a dawn tour to overcome the crowds, watch pale spill over the caldera, and seize serene streets until now the island wakes up.