Over the previous month I'd travelled from the ice-bound fjords of Patagonia more than two thousand miles away, all the way to here. From northern Scotland to Timbuktu is about the same distance. Chile had been an amazing place but I had less than two months left until I needed to be in Quito so I had to move on. Sprawling across thousands of square miles of southern Bolivia between San Pedro and the nearest Bolivian town of Uyuni is the largest salt flat in the world, and I hooked up with Sebastian from Germany and Pia and Signe from Denmark to cross it. We would travel across in a 4WD driven by Victor from Bolivia.
The Bolivian border is only thirty miles from San Pedro but it's more than 2 kilometres higher, and the rapid ascent was a bit risky from the point of view of altitude sickness. My trip to El Tatio had been good for acclimatisation, though, and I felt OK as we waited in the thin air to get our passports stamped. Near by, an old bus was decaying into the desert sands. It seemed a strange place to have a border, and I wondered just how boring it must get here on a slow day, with absolutely nothing here but the border itself - no town, no shops, no scenery.
Our first stop was Laguna Blanca, just a short distance from the border. It's a deep green mineral lake, which sits at the base of Volcán Licancabur. San Pedro was just on the other side of the mountain, hardly any distance at all, but it felt like we were in a different world, here in the thin air and harsh terrain. I walked down to the chalky muddy shores of the lake to take some photographs before we drove on to Laguna Verde, a little bit higher up and further on. Here we found hot springs, and we took a warm bath in the hot Altiplano sunshine. I made a huge tactical error in not putting on more sun cream - somehow, although I've spent a lifetime getting sunburnt even in the Arctic, I thought I would not get burnt in the midday sun 4,000m above sea level in the tropics. Within twenty minutes my shoulders were a terrifying red, and I knew I was in for an uncomfortable few days.
It was a great place for a dip, though, in fantastically warm water and surrounding by vast wild high-altitude desert and a horizon dotted with volcanoes. None of us were yet feeling the effects of the altitude and the mood was good as we headed yet higher, to Sol de Mañana, 5,000m above sea level and apparently the highest geothermal area in the world. A few roaring holes in the ground were spattering mud, and steam was rising from everywhere. At this altitude there is barely half the amount of oxygen you get at sea level, and I was beginning to feel a bit spaced out. I tried to take some video footage of the mud geysers, but didn't even notice until later that I was taking stills by mistake. I was glad that our destination for the day was 700m lower than here.