Paddling in Parque Nacional da Chapada das Mesas

Parque Nacional da Chapada das Mesas sits in the cerrado of southern Maranhão, where three biomes — cerrado, caatinga, and Amazônia — converge near the border with Tocantins.

The park's 160,046 hectares protect a landscape of sandstone plateaus, deep canyons, and rivers that carve through the mesa country before draining toward the Rio Tocantins.

The water here is the reason the park exists: the Cachoeira de São Romão, the most voluminous waterfall inside the park, was the direct target of a proposed hydroelectric project, and blocking that dam was the driving force behind the park's creation in 2005.

The paddling anchors on the park's major waterfalls and the pools and river stretches connected to them.

Cachoeira de São Romão, at 25 meters, is the centerpiece — kayak is listed as an optional activity at the site, making it one of the few places inside the park where paddling is explicitly part of the visitor experience.

Cachoeira da Prata is the other major fall inside the protected boundary, where water drops over rocky ledges into a clear basin. The Rio Azul, with its distinctively blue water, rounds out the named waters connected to this landscape.

Access to the waterfalls inside the park requires a credentialed guide and, for several sites, a 4x4 vehicle — the roads are not passable by standard cars. Carolina, roughly 845 kilometers from São Luís, is the main gateway.

The dry season, May through October, is the practical window: water levels are manageable, trails are passable, and the waterfalls run clear. The December-to-March rainy season can make access routes impassable entirely.

As a Proteção Integral federal park, rules here are stricter than at the private tourism complexes nearby.

Check with the park directly for current permit requirements before planning any paddling — what applies at São Romão may differ from what is allowed elsewhere inside the boundary, and those rules can change.

The park was created late — the first proposal dates to the 1970s, and it wasn't established until 2005 — and the reservoir of the Estreito hydroelectric dam already borders it to the south. What's inside the boundary is what was saved. Paddle it accordingly.