The mountain village of Konstantinoi is built on the mountainside and has approximately 80 permanent residents. It is 9 kilometres from Meligala and 37 kilometres from Kalamata.
The village is widely known for the two ancient marble slabs found at the "Kamares" site during the 1880s. The slabs date to the end of the 1st century BC. and record the entire ritual of the Mysteries of Andania in every detail. Today, visitors can see the plaques embedded to the right and left of the church of Saints Constantine and Helen entrance. The two ancient slabs contain 27 paragraphs where commands and services are given to each participant in the mysteries and ceremonies, which lasted nine days.
Since 1961, the "Association of all Konstantinoi people", with more than 1000 members based in Athens, has been founded for the village. Also, since 1988, the Association has published a magazine in which the life and activities of the village are highlighted.