If you only have 4 hours in Santorini, e.g. you have a stop from a cruise ship, I would do the following: Get a taxi and go to Fira Village. Walk around for 30 minutes and just stop in a cafe on top of the caldera, drink something and enjoy the amazing views. Get again a taxi and go to Oia Village if it is the sunset. read more
If you only have 4 hours in Santorini, e.g. you have a stop from a cruise ship, I would do the following: Get a taxi and go to Fira Village. Walk around for 30 minutes and just stop in a cafe on top of the caldera, drink something and enjoy the amazing views. Get again a taxi and go to Oia Village if it is the sunset. read more