This nature reserve is the only one in Spain, which covers sea and land at the same time; it contains the largest uninhabited area in the Spanish Mediterranean.
The rocky coast which is barren and mainly consists of slate, is continually broken up by small bays. Fauna and Flora of the area are quite unique and comprise a variety of very rare species of sea-birds in danger of extinction. Winter is domineered by very strong northerly winds which continually hinder fishing and maritime traffic. Therefore the area around the Cap registers a very small environmental pollution and is renowned as underwater paradise for divers
. The very characteristic lighthouse of Cap Creus sends his signals flashing twice every 10 seconds. In the summer the winds blow to 70 % from northern directions, the " Mistral" comes from NO and the " Gregal "from NW. In summer time around midday the wind blows the strongest and calms down during the night.