Family/ Big Groups Complex of 3 Houses-Sunset Views is the best one for family. It is perfect for my group (4 couples). There are 3 rooms seperate from each other, each room have 2 beds, kitchen with pots and pans..., a bathroom with shampoo, towels..., and the very good view from the top. The bus stop in front of the path to Oia or Thira.
We had very good time there and will definately refer and come back.
Thanks Eleni for your advise to book the Sunset cruise, a memorial last for ever.