Moli de la Font is a fresh water spring that has a flow variation of 0.6 to 0.9 cubic meters depending on the water level. It is located in Font de la Reina natural site around four kilometers northeast of Castellón. The area is surrounded by reeds, typhas, oleander, orange trees, olive trees and carob trees.

A complex network of canals is at just few meters away from the water exit of the Acequia Mayor (major ditch) to the north of the Río Seco. Nearby this natural area are the Castillo de la Magdalena (castle) and the hermitage of Sant Francesc de la Font.

At nearly twenty meters from the water spring is the old water mill Molí de la Font. The first few meters of the water flow remain retained in a small pond surrounded by reeds and typhas that contribute to an extraordinary image which house a great diversity of flora and fauna.