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Foz do Iguaçu · Ciudad del Este · Puerto IguazúThursday, July 30, 2026US dollar R$ 5,12₲1.000 R$ 0,85$1.000 R$ 3,42Foz now 20°C clear sky
Foz do Iguaçu · Ciudad del Este · Puerto IguazúThursday, July 30, 2026US dollar R$ 5,12₲1.000 R$ 0,85$1.000 R$ 3,42Foz now 20°C clear sky
Marco Três is the useful-information system of the Triple Frontier, Foz do Iguaçu (BR), Ciudad del Este (PY) and Puerto Iguazú (AR). More than a portal: live data, tools and verified guides that help visitors and residents decide with data, not guesswork.
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.