Arequipa and Cusco – the two cities that are the subject of this post – are probably the two cities in Peru that are most amenable to travellers (though Lima certainly has a lot to offer too). For me they should have been punctuated with a trip to Colca canyon, one of the deepest canyons in the world and twice as deep as the Grand Canyon. Unfortunately, I got really sick on the second day in Arequipa as my attempts at keeping my tummy bug at bay finally failed.