Preparing the route of the trip, I could not understand how I would cross the border with Guatemala driving the road from Palenque to the southeast, because there was no such connection on the map. Fortunately, the matter was clarified on the spot. I took the bus to Frontera Corozal, and then took a boat to the settlement of Bethel in Guatemala. Crossing the jungle border of the Usumacinta River was a great experience and for a moment I felt like Tony Halik. On the other hand, the further journey by bus is a real horror, because even the locals called this route the "St. Shaking" road.