Graham Mallaghan said:
"Does the fact that so many people throw coins into water almost instinctively support the assertion that in the distant past formal water veneration was ubiquitous or generic among the greater number of people?"
 
... Shouldn't we be surprised if people did not venerate water, such an essential life supporting element?
 
Places of Pilgrimage: A photographic resource for Pilgrims: megalithic sites, holy wells, black madonnas, labyrinths, pilgrim ways - ancient rites, sacred sites and shrines of every kind. Pilgrimage past and present.
http://pilgrim.ifrance.com