You can take a bus or taxi. The bus costs Q3.00 and taxi costs Q5.00, but for tourists it may cost a little more.
There is only one route that goes from the Central Market, in Puerto Barrios; to San AgustÃn, in Santo Tomás de Castilla. The bus stops don't have signals most of the time, so you must have to know the place where you are coming down.
To travel more widely, taxis are best. But be careful. Taxis must have an identification number on both doors. Also, you can negotiate the payment with the driver. Most of the time, this isn't necessary; but like you don't know the city and you don't have your own car, you will have to do it sooner or later. Most of the time, a "carrera" will cost you between Q20 or Q50; depending on where you are going.
Assaults are very common in the country, but Puerto Barrios is a relatively safe city at the moment but be careful with taxis at night. Take them in well illuminated places and if you can, guide them to your destination and ask them not to pick up anyone else. This will cost you a bit more, but you won't get ruined.
English is not widely spoken, you will have to communicate with the rest of the people by using Spanish.
