Despite being in the middle of the driest region on earth, we set off to explore some lakes before bidding San Pedro de Atacama farewell and heading onwards to Argentina. First, we explored the salt lakes that are vital habitat for flamingos. The lake was slowly evaporating, leaving behind encrusted salt, in the midst of a vast salt plain.
Then it was onwards to the Altiplanic lakes at 4500m, vivid blue water reflecting the fiercely clear sky, ringed with tough green grass and small herds of vicunas.
The next day we packed up and set our sights on Argentina, boarding a bus to take us up and out of the desert, over the Andes, and down the other side to Salta, a colonial city in the northwest of the country. We drove up high enough to pop our bags of crisps, past volcanic peaks, including one marking the border with Bolivia, a tantalising glimpse of a destination for next time. We passed lakes ringed with bright white salt, strange rock forms emerging from the desert, spotted vicunas, and somewhere up in the mountains we crossed the border into Argentina.
Then the descent, by which time we were on the verge of dozing off, but our eyes pinged open when we realised we were in the middle of a brilliant white salt plain stretching into the distance.
Sometime later we entered a dense bank of cloud, and then started making our way down a series of hairpins. As we emerged from beneath the cloud giant cactuses dotted the canyon-like hillside, which gave way to a valley of pink, red, and purple striped hillsides. We had entered the UNESCO World Heritage valley of Quebrada de Humahuaca. As night fell rain started pouring, a welcome relief from the dryness of the desert. We drove onwards for a couple more hours, this time through urban and agricultural lowlands, streetlights and car lights illuminating the raindrops on the windows, and making the earlier succession of natural wonders seem impossible.