Upvote:3
I've emailed Itaipu at info@turismoitaipu[dot]com.br and it turns out the question is moot: they're canceling the catamaran tour (both the day and sunset tours) after TODAY (Dec 18, 2019). What are the odds.
Unfortunately today is the last day of Kattamaram ride, after the ride today will be disabled and no plans to return.
May make the tour of the Itaipu Enlightened, I suggest that you purchase in advance via our website to guarantee your reservation: https://ingressos.turismoitaipu.com.br/p/itaipu-iluminada
However