Hi! I'm planning to visit Paraguay, Bolivia and Peru with two (female) friends this summer. All of us are students so we plan a rather low bugdet-tour. We've heard that there is no road leading from Filadelfia in Paraguay across the Chaco to the Bolivian border and then to Sucre/Potosí. Is it right that one can only hitchhike but those roads on the Chaco are only used by military busses? If so, how dangerous is this really for three backpacking girls

? Thanks for your advice! So long,