I spent a few nights outside of Santa Marta, Colombia, in the Pozo Colorado area, between the airport and Rodadero. There appeared to be Ubers available in Santa Marta itself but there were none to be found in the areas outside the city. Taxis in this area don’t use meters; it’s a fixed rate between specified locations. I always asked how much it would be before getting in the taxis (and knew how much it was supposed to be) and everyone quoted me the rate it was supposed to be (one guy told me not to worry about taxis in Santa Marta). Below is a chart of taxi rates which seemed to be the same rates they were using in March, 2018.
Source: http://seguimiento.co/colombia/ya-es-oficial-el-aumento-de-la-carrera-de-taxis-en-santa-marta-4877 (last viewed March 19, 2018)