If you want something your little one is going to absolutely love riding in this is a great red beach wagon. (geekwrapped.com)
See the map of Red Beach on the right for the exact location. (divezone.net)
The beaches on the east coast of Santorini feature dark basalt sand, while those on the south of Santorini (Red Beach in particular) are famous for their multi-coloured sands. (loveholidays.com)