It happens the same when my guests arrive in Buenos Aires, for sure, their next stop will be in the falls, and they introduced to a very charming town called Puerto Iguazu which belongs to the very wild and absolutely fantastic province of Misiones.
When my guests start their journey in Rio de Janeiro where they have a real HEAD OF STATE reception, that mostly go to Iguazu Falls but they stop in our bordering city called Foz do Iguaçu...but I am so sorry Brazil....In the brazilian side you must see only the National Park where the Falls are...the rest and the best of your trip in this REGION has to be in the argentinean side crossing the Tancredo Neves Bridge, in the other side of the River....
AND WHEN I AM NOT AVAILABLE IN ARGENTINA, I JUST CAN RECOMMEND YOU ONE SINGLE PERSON...THE KING OF THE WATERFALLS - MICHAEL!!!!