The Tarija Department is a department in the Sub-Andean region of Bolivia.
Asunción, Paraguay – The bus travels between Asunción and Santa Cruz and is extremely slow (the Transchaco Highway is only paved as far as the Bolivian border). Buses generally travel only at night - meaning that you miss out on any views of the Chaco, and roadblocks on the Bolivian side of the border can cause your journey time to double. There is at least one bus daily. The trip takes 21-24 hr, costs US$40-60 (bargain if you can), and flights might actually only be marginally more expensive, depending on the time of booking. Any intermediate exit or boarding (like Filadelfia or Villamontes) will likely cost the same as the complete trip. But if your nerves are strong, you will get the price down bargaining directly with the bus driver.