South of Santorini
The south part of the island keeps some secrets and has many good accommodation options as well.
Akrotiri is the name of the archaeological site that also gives its name to this town in the southern part of Santorini. The biggest tourist attraction in the area is in addition to the ruins, the Red Beach.
Megalochori is a small town, very picturesque, where you can mix with locals and escape the hustle and bustle of the north of the island.
Other areas of Santorini
In Santorini there are many small towns where you can get a much more authentic and economic experience if you decide to stay in them, something recommendable if you plan to visit the island on your own by motorbike, quad or car.
Karterados is located just 2 km from Fira and not far from the airport, so it can be very convenient. Although it has some beautiful churches and houses, it does not receive as many visitors as the neighboring towns. Of course, if you decide to stay in Karterados I advise you to rent a motorcycle or quad so you do not have to depend on public transport all the time.
Pyrgos is the ancient capital of Santorini. It is a picturesque town, with a castle, a monastery and 33 churches. It is another area overshadowed by the popularity of the caldera area but it is certainly interesting. In Pyrgos you will find offers of cheap hotels and boutique hotels at a more competitive price than on the coast. Just like with Karterados, it is recommended that you have your own transport.