It is best to use taxis. They are usually prompt and reliable. Tipping is not mandatory or usual. Domestic Travel One pressing problem in Colombia is that of construction and maintenance of railroads and highways. The complex topography with its high mountains, deep valleys and frequent landslides, has made it very difficult to have reasonably good roads.
Aviation is by far the preferred means of inter-city transportation.
Good airports in most cities and several airlines cover the whole country. Still, if you prefer, there is an inexpensive bus service of reasonable quality and their routes extend through most of the country. Any traveling within Colombia during your staying period must be reported in advance to the International Relations Office, and an address should be left in order to be able to reach you at any time, in case of need. It should be noticed that these figures are only approximate and that there is a general rising trend. In that case is not necessary to give an additional tip.