It covers 168,6 hectares in the municipal term of Yaiza. The halophilous habitat and the associate species, as well as the traditional activity from obtaining salt as it is practiced today are the protection purpose.

The best port in Lanzarote was located in this area and it was razed by the lava from the eruptions of 1730-36. A sand-bar was formed, as well as closing an intenal lagoon called Caleta del Janubio.

This lagoon is the main refuge and the last of the island for limícolas birds. Some are migratory as the dunlin, and the turnstone. Other net here such as the b1ack-footed plover, a threatened species.

The lagoon presents a green color, the same as the lagoon of the Clicos in the Golfo. This is due to the concentration of a marine alga: Ruppia maritima.

A great part of the Janubio area nowadays are some salt flats. Out of 60 salt flats from the XVII century in Canary, 24 were located in Lanzarote, being Janubio's biggest, of approximately 500.000 sq. m. Today, we can see only 9 of them in operation. Those in the Janubio have been restored entirely, forming one of the most personal landscapes from Lanzarote. Man's genius is represented as the obtaining of salt; product with a wide range of purposes from the beginning of the new civilizations.

In the industrial archaeological Architecture section we expose the salt production process thoroughly as well as the diversity of Lanzarote types of salt flats.

The protected space also includes: several lime ovens used in the construction for the salt flats; five mills to bring the inundated water to the channels; and several constructions associated to the salt exploitation.

The black sand-bar is composed by arid of basaltic nature on a volcanic platform. Here a beautiful beach contrasting with the white of the waves can be observed.

The surrounding vegetation is composed by dispersed bushes as furzes, brusca (salsona longifolia) and coseos (Mesembryanthemum nodiflorum). Although lichens of a whitish color prevails fundamentally.