 Porto Novo on Santo Antão is the only source for imports and exports of produce from the island as well as passenger traffic since the closure of the airstrip at Ponta do Sol.There are smaller harbors, essentially single jetties at Tarrafal on São Nicolau, Sal Rei on Boa Vista, Vila do Maio (Porto Inglês) on Maio, São Filipe on Fogo and Furna on Brava.These are terminals for inter island ferry service carrying freight and passengers.