Cayo Arcas Terminal, located in the Gulf of Mexico, is an offshore oil terminal operated by Pemex. Due to its nature as an offshore oil terminal, Cayo Arcas Terminal does not offer any shopping or nightlife facilities. The nearest shopping and nightlife options are available in the city of Campeche on the mainland. The main attractions of Cayo Arcas Terminal are the oil rigs, which are among the largest oil producers in the Gulf. The Cayos Arcas is a chain of three tiny sand cays and an accompanying reef system. These uninhabited islands serve as a navigational marker.