Santorini was all what anyone would dream of when it came to traveling to Greece. It is the go to destination and one of the top places to go for tourism. If I were you, I would make the most out of it because the view is breathtaking.
The most honest thing I can say with my visit was that I felt rushed due to the time constraint and there were too many tourist groups everywhere. So here is what you can do if you only have two hours to spend in Santorini:
1. Take as many photos as possible
This is a given but given that you have little time and Santorini is the one of the most picturesque lands in the world, you have to take advantage of that.
2. Try your best to find and walk down some alleyways outward from the center street
Some areas are empty because they are private property and are linked to hotels. However, if you manage to find some public alleyways, go in! You'll find some of the best views.
3. Find a cafe with a balcony view and enjoy it!
I would say by the last hour, take some time for yourself and people-watch in a cafe. You don't tend to see tourists from all around the world rushing to see everything (just like you). My friends and I decided to get some juice at a nearby cafe and just sat there in silence soaking in the last fleeting moments of Santorini.
Whether you have a week here or a couple of hours, don't forget to capture the moment as well as stop and live in the moment! Hope everyone is having a lovely weekend~