My favorite thing to do in to in Santorini is to sightsee the Island. It has the most breathtaking views because the city is built on the cliff of an island. I absolutely loved Greece and Santorini is a "must go" destination.
Things to do:
Enjoy the Greek food, one of my favorite cuisines.
Santorini's beaches. There is a varaity to choose from with different sand colors.
Fira and Oia. Great views and best sunsets.
Traditional House Hotels. Unique experience.
Catamaran Cruise. Perfect to spend the day.
