Options for getting around the country include bus service, ‘gua-guas’ (pronounced “Gwa-Gwas”: small battered vans or trucks that serve as a collective taxi running fixed routes that are very cheap but can also be very overloaded), domestic air flights and charter air service. There is a rail system operating only in the city of Santo Domingo.
Most towns and cities have regularly scheduled bus service, if not by one of the big bus companies, then by gua-gua. The bus lines are most often simple, independently run operations, usually only connecting two cities within a region (Southwest, East, North) or between one city and the capital (with stops made for any towns on the route). Because of the geography of the country, to get from one region of the country to another you have to go through the capital
Bus and Ship schedule in Dominican Republic >> horariodebuses.com • Caribe Tours.
Try to avoid being alone in cities as muggings are fairly common.