Rice and the channelling of the marsh Historical milestone · Pego, La Marina Alta, Alicante Image of Pego, not of the place itself. The wetland that occupies the plain was channelled from the eighteenth century with irrigation channels and drainage ditches so that rice could be planted, an activity that sustained the local economy for two hundred years. In 1994 the marsh was declared a natural park and the rice-growing area was regulated. siglo XVIII Photo: CTHOE (CC BY-SA 3.0) What to see and do in Pego