The islands of Île-à-Vâche, Île de la Tortue, Petite and Grand Cayemite, Grosse Caye, and Île de la Gonâve are reachable only by ferry or small sailing boat (except for Île de la Gonâve, which has an airstrip that is rarely used). The majority of towns near the coast of Haiti are also accessible primarily by small sailing boats. Such boats are usually cheaper and more available than is public ground transportation, which is commonly limited to trucks loaded with merchandise and passengers on market days.