Sunshine hit me

Hoorah for sunshine! We've dropped nearly 4km in altitude from the chill of the Altiplano to the coastal desert of Peru, where mountainous sand dunes run down to the sea and the sun cooks us at a steady 28 degrees.
We stopped briefly in Nazca to check out the huge pre-Inca drawings in the desert. No-one's quite sure what they were for, but theories range from ceremonial art to irrigation channels to runways for alien spacecraft. Being drawn in the flat desert plain, they can only really be viewed properly from above, which makes you wonder how these giant figures (a tree, a bird, a lizard, a human etc) were drawn in the first place. Being the cheapskates that we are, we opted not to take a flight over the desert, instead catching a bus to the middle of no-where to climb a lonely lookout tower for a glimpse of the lines. Standing in the midday sun, with flat desert as far as the eye could see in all directions, waiting for a bus to come past (and hoping it would actually stop) was almost as bizarre an experience as the lines themselves.