ary , ▁resulting ▁from ▁the ▁interaction ▁of ▁wind , ▁waves , ▁t ides , ▁the ▁river , ▁and ▁human ▁impact ▁through ▁tid al ▁engineering ▁works ▁as ▁seen . ▁ ▁Vis iting ▁the ▁nature ▁park ▁▁ ▁There ▁are ▁bird - watch ing ▁points ▁in ▁several ▁places ▁by ▁the ▁mar sh es ▁and ▁Via ▁Ver de , ▁from ▁the ▁dis cont in ued ▁H uel va - A y am onte ▁railway , ▁cross es ▁it ▁length wise . ▁This ▁trail ▁is ▁particularly ▁suitable ▁for ▁h ik ing ▁and ▁cy cling ▁thanks ▁to ▁the ▁slight ▁slope ▁of ▁the ▁railway . ▁Other ▁h ik ing ▁routes ▁with ▁interpretation ▁points ▁are ▁located ▁at ▁Pr ado ▁P ond , ▁Mol ino ▁tid al ▁mar sh ▁of ▁Poz o ▁del ▁Cam ino ▁and ▁the ▁Du que ▁salt works . ▁ ▁There ▁are ▁three ▁sign post ed ▁paths ▁in ▁the ▁mar sh es : ▁▁ ▁Lag una ▁del ▁Pr ado : ▁accessible ▁from ▁and ▁close ▁to ▁the ▁village ▁center ▁of ▁La ▁Red ond ela . ▁It ▁is ▁▁ ▁long . ▁▁▁ ▁T idal ▁mill ▁of ▁the ▁Poz o ▁path : ▁direct ▁access ▁from ▁the ▁Via ▁Ver de ▁road ▁near ▁the ▁Poz o ▁del ▁Cam ino . ▁It ▁is ▁ ▁long . ▁▁▁ ▁The ▁Duke ▁salt works : ▁accessible ▁from ▁the ▁north ▁of ▁P unta ▁del ▁Mor ral . ▁It ▁allows ▁bird ▁watching . ▁It ▁is ▁ ▁long ▁and ▁represents ▁about ▁ 2 ▁hours ' ▁walk . ▁ ▁E com useum ▁▁ ▁The ▁e com useum ▁of ▁the ▁Christ ina ▁Island