December 2022: "Fischers in Peru"

Well, I got to wondering a bit about altitude, living as we do at 2,300 metres here in Arequipa (which is pretty-much the height of Mt. Kosciuszko).  We all know that water boils at 100 deg. C at sea level -- but what about at 2,300 metres?  Or at 4,200 metres (Tisco, here's looking at you)?

The oldest market here in Arequipa is 'Mercado San Camillo', part of the old centre of town and always plenty of stuff happening.  It's here that you can find stalls with just a few of the hundreds of varieties of potato:

That might look exotic enough, until you find the guy who sells the big fat grubs: