It´s located in the south sea inlets of Galicia. It was declared national park in 2002. 86% of the protected surface is maritime and 14% is ground. It contains the island chains of Cíes, Ons, Sálvora and Cortegada, and forms a natural barrier which protects the islands from the buffeting of the Atlantic Ocean. The main ecosystems are the coastal (sandy areas,dunes and cliffs), underwater (rocky, sandy or Maerl seafloors and peebles) and ground (Atlantic and submediterranean coastal bushes). The seafloors (the jewel of the park) is the place where the most biodiversity can be found. This is the water where the local fleet fishes. Sea birds are remarkably common.
Due to the low height, the weather is warmer than the one in the continent, the temperarure is pleasant and it rains less.
There are guided routes and marked itineraries and it´s advisable to wear appropiate shoes and to take water and sun cream. Follow the instructions of guides and guards.
Camping isn´t allowed (except in the indicated areas), you mustn´t pull up plants, take shells, disturb the animals, walk away from the indicated areas, make loud noise, light a fire or take pets (except guide dogs). Diving, sailing and anchoring are regulated and leisure fishing is prohibited. Rubbish mustn´t be left in the park.
The headquarters of the park is in Vigo: Cambón Building is in the old part and it´s a centre for the visitors of the four island chains.
