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Foz do Iguaçu · Ciudad del Este · Puerto IguazúSunday, September 13, 2026US dollar R$ 5,11₲1.000 R$ 0,86$1.000 R$ 3,38Foz now 17°C few clouds
Foz do Iguaçu · Ciudad del Este · Puerto IguazúSunday, September 13, 2026US dollar R$ 5,11₲1.000 R$ 0,86$1.000 R$ 3,38Foz now 17°C few clouds
Marco Três is the destination's living observatory, the Triple Frontier: Foz do Iguaçu (BR), Ciudad del Este (PY) and Puerto Iguazú (AR). It brings the three countries' official data into one place, in real time, and points to the movement trend at the border, a signal validated against ANAC (92%). Live data, tools and verified guides that help visitors and residents decide with data, not guesswork. Per-turnstile counting at each attraction is the next step.
Exchange rates for all three countries, weather and forecast movement at the attractions, updated throughout the day.
An AI concierge, a queue-free itinerary, the allowance calculator, a document checker, emergency numbers and the bridge queue live.
Practical answers to the questions people ask before traveling, each with an official source.
An automated, transparent newsroom that publishes only good news from the region, always citing the source.
Curation is automated by artificial intelligence, with full transparency and one non-negotiable principle: zero inference. If a piece of information isn't in the verified source, it doesn't go in. All content cites and links its origin, and live data comes from public, official sources.
Editorial oversight is by Annie Grellmann, born in Foz do Iguaçu, a journalist, responsible for the editorial line, periodic checks and the correction or removal of any inaccurate content.
Contact: 3xmarcotres@gmail.com · Maintained by INFI Comunicação.
Marco Três is an independent media outlet. The name and symbol refer to the geographic meeting of the three borders; we have no connection to the Three Frontiers Landmark attraction or its operator.