Saturday night in Puerto Iguazu is properly rocking, busier than every previous evening with queues outside several restaurants and music from numerous bars clashing mid street in a melee of bass lines and choruses which succeed only in drowning each other out. Bon Jovi, Men At Work and Gnarls Barkley merge into a disturbing melange which threatens to confuse and confound the ears. Whether it’s like this every Saturday, or whether it’s especially busy because it’s Easter, we’ll never know.  Our last night in Argentina And so after our brief 5-day glimpse of Argentina, we head back across the bridge and cast one last look at the pale blue skies…