AS THRILLING AS IT IS to ride an explosively flatulent camel alongside a derelict Star Wars film set on the edge of the Tunisian Sahara, I’m more taken by our visit later that day to the date-palm oasis at Tozeur, where we trot on horseback under a canopy of outstretched fronds, sparrows chittering overhead. The palms—there are 260,000 of them, according to our guide, Shedly Bakhta—are fed by ancient irrigation channels that also water all manner of fruit trees: peach and pomegranate, lemon and orange, fig and banana. Wildflowers grow in their shade. It seems almost ludicrously lush, given the blinding salt flats that lie just beyond this island of greenery.
Dismounting, we sit with Shedly and one of his colleagues on a Berber carpet laid out on the ground, a…
