Tête de l'Île de Pâques, Chambray-lès-Tours, Indre-et-Loire (37)

At the side of a lake in Chambray-lès-Tours is a structure inspired by the moai on Easter Island. On our map it's listed as a 'rocher d'escalade', although the general title now seems to be 'Tête de l'Île de Pâques', which seems logical. Although it's equipped with all the means for climbing, a notice within the circle in which the statue exists reveals that it is only to be used by authorised people. And one website claims that climbing is strictly forbidden (suggesting by anyone). I can find little information about its history, although it seems to date from 1989 after winning a competition, and the tallest point is seventeen metres. I can find no mention of the person who constructed it, and nor can I find any information on the much smaller structure near it.