When I go on vacation it is almost never to relax. Sure, relaxing by a beach or pool is nice, but you can do that almost anywhere. I prefer to see/do/experience as much as possible. There is always just so much to see!
This is why one of my favorite days in Santorini was spent riding the ATV around the island and stopping for a short time a different points of interest. Santorini is a small island (about 34 square miles) and we were able to see Black Beach, White Beach, Red Beach, Perissa, Kamari and Amoudi Bay all in one day. We stopped and had a drink or a lie down at each one before moving on to the next one.
Our goal wasn't to come back to England with a nice tan, it was to see as much as possible of this beyond beautiful place.