The economy of the island is based on agriculture and fishing, with coffee and wine among the main products. Many private households live off remittances from emigrants in the US and other countries as the island has a substantial diaspora. Many emigrants send some money to their relatives in the island even if the senders and receivers no longer know each other. Tourism is steadily becoming popular. The volcano is the island’s major attraction but many visitors also come to see relatives. The historic city of São Filipe and Chã das Caldeiras in the volcanic crater receive the bulk of visitors.