While in Santorini, make sure that you rent an ATV and drive around the island. When we were there, it seemed like there were actually more ATVs than cars! All the tourists seemed to do it and it was fairly inexpensive (roughly 25 euros a full day).
With our ATV in hand, we drove it down to the Akrotiri lighthouse which is the southwestern tip of Santorini. Which is a great spot to watch the sunset (or at least that's what we were told). Unfortunately, when we went, it was cloudy and the sunset didn't happen as nicely as expected. However, it seems like a nice place to visit and hang around.
Like a lot of the places in the area, it seems like most people just park their vehicles wherever they can and hope for the best. There is a small parking lot there at the very end, otherwise you would just park on the side of the road and walk to the lighthouse.
Both the parking and the lighthouse is free to visit in 2017, however, you aren't actually able to go inside the lighthouse which I thought would've been neat, but alas, it wasn't meant to be. If you say for the sunset, make sure to stay a bit longer because the lighthouse is actually a working lighthouse and the light will come on shortly after the sun has completely set.
The surrounding areas has some nice views of the island and it is nice since it is not as busy as Oia would be for watching sunsets.
Come back next Friday for another Past Point of Interest!