Located very near Logroño next to the Pilgrim's Way to Compostela
, this wetland, classified as a Nature Reserve
and Special Bird Protection Area
(ZEPA), is one of the most important in Navarre
due to its singularity and the variety of birds that pass through it. It is an ideal place to observe nesting and wintering waterfowl. There is a path around the perimeter of the lake that leads to the 'El Bordón' Bird Observatory.
The walk, around 4.5 kilometres and completely flat, allows the visitor to observer numerous bird species with relative ease from different points. These include herons, purple herons and bitterns. The observatory contains information panels on the uses of water, vegetation, and wintering and nesting birds. It also offers the visitor an audiovisual display, binoculars and telescopes. Guided visits for schoolchildren are also organised during the school year.