Until the bridge opened, the only land access to Oiapoque from Brazil was a long highway north from Macapá, and that road remains an adventure. The route passes through Amazon rainforest and then - surprisingly - through a dry Guianan savanna region with scattered trees and tall grass, an ecosystem that looks nothing like the forest on either side. As of December 2025, about two-thirds of the road was smoothly paved and the remaining third was hard-packed dirt and gravel with dozens of single-lane temporary wooden bridges crossing streams. It is passable by any car in the dry season. In the wet season it requires four-wheel drive. Buses from Macapá's Terminal Rodoviária run daily, taking 7 to 12 hours depending on conditions, for about R$195 as of late 2025. The faster option is a shared Toyota Hilux that leaves when it has four passengers, costing R$300 to R$400 each.

The Oyapock River Bridge connects Oiapoque to Saint-Georges-de-l'Oyapock in French Guiana. It was completed in 2011 but stayed closed for six years due to payment disputes, staffing issues at Brazilian customs, and minor diplomatic friction. It officially opened to public traffic at 8:00 on March 20, 2017. For travelers the process is now straightforward. Immigration and customs checkpoints sit at either end of the bridge, and passport stamps no longer require a visit to the Federal Police station in town. Crossing on foot is allowed, though the distance between the two downtowns exceeds two hours of walking. Most travelers take a taxi to the first checkpoint, walk across in about 20 minutes of exposed sun, and continue by taxi on the other side. The bridge closes overnight. Hire cars typically can't cross, and certain vans have been refused entry.

The weekend demographics of Oiapoque surprise first-time visitors. Many of the people eating and drinking at the riverside restaurants speak French because they are French - residents of Cayenne and smaller French Guiana towns who drive down for cheap groceries, cheaper tobacco, and a change of scenery. Brazil's taxes and prices sit dramatically below France's. A restaurant meal that would cost 25 euros in Cayenne costs 10 in Oiapoque. A pack of cigarettes costs a fraction of the French price. Avenida Barão do Rio Branco forms the town's main commercial boulevard, and riverside restaurants near the ferry landing fill with families on weekend afternoons. Hotels charge at least R$200 a night at the cheap end as of late 2025, expensive by Brazilian standards but still a relief compared to French Guiana's prices.

Brazilian popular culture puts Oiapoque at the country's northern edge. The phrase "from Oiapoque to Chuí" means "the whole country," and geography textbooks for generations taught this place as the northernmost point of Brazil's coast. That's roughly true - the mouth of the Oyapock where the border meets the sea marks the end of Brazil's coastline. The actual northernmost point of Brazilian territory lies hundreds of kilometers inland on Monte Caburaí in Roraima state, but Oiapoque is where the poetic edge sits. Standing at the waterfront you see the Oyapock flowing wide and slow, boats tied to the bank, and a line of rainforest on the opposite shore that is technically France. The French town of Saint-Georges itself is hidden around a bend about five kilometers downstream.

Downtown Oiapoque is walkable in under an hour. There is a taxi stand at the port. The bridge is a bit of a hike from the main square, so a short taxi ride to the first checkpoint is standard practice. The waterfront itself is messy - boats, tied-up pirogues, fish being cleaned, vendors with plastic stools - but the energy is real, a working river port rather than a tourist set. Visitors mostly eat, drink, buy things, and cross the border, and the town has arranged itself efficiently around those four activities. For anyone exploring deeper into Amapá state, some nature reserves and villages upriver may be worth the extra effort, but local research is required. This is the end of the road from Brazil and the beginning of French Guiana, and Oiapoque has grown comfortable in both roles.