Parque Nacional Cerro Corá

Cerro Corá is a landscape of weathered granite domes and cerrado-like savannah rising sharply from the surrounding flat agricultural plain, and the contrast is immediate and unexpected — one moment you are driving through flat soy fields and the next the road cuts into a dramatic rocky hillside covered in stunted trees,仙人掌 and bromeliads, an island of distinct ecosystem that has survived in isolation from the agricultural transformation that has consumed everything around it.

The park's trails follow ancient Guaraní paths and more recent military routes, and the most walked circuit leads to the monument marking the site where Marshal Francisco Solano López fell on 1 March 1870, the final act of a five-year war that killed an estimated 400,000 Paraguayans and reduced the country to a fraction of its former territory and population, the monument itself a simple concrete obelisk surrounded by a manicured lawn that feels out of place in the rugged terrain.

The Lomba trail climbs through gallery forest along a seasonal stream to a granite hilltop with panoramic views across the entire park, and early morning walks here reveal tapirs, giant anteaters and the elusive maned wolf that survive in the isolated habitat fragments that the park was created to protect, while the undergrowth conceals dozens of reptile and amphibian species whose conservation status is poorly documented in Paraguay.

The park's visitor centre has small but informative displays about both the 1870 military event and the park's biodiversity, and the staff are knowledgeable guides who can point out tracks and signs of wildlife activity that a solo visitor would easily miss in the dense undergrowth, and the centre's small bookshop stocks the most comprehensive field guide to Paraguayan wildlife currently in print.

Accommodation inside the park is limited to a small campsite with basic facilities and a handful of rooms in the park administration building, so the nearby city of Pedro Juan Caballero — a dusty border town known for its role in regional trade and, more recently, for its association with smuggling — functions as the practical gateway, though the town's atmosphere and associated security concerns require awareness when moving around after dark.

The park's most distinctive geological feature is the series of granite inselbergs — isolated hills rising abruptly from the plain — that give the landscape its dramatic character and provide specialized microhabitats for plant species adapted to the thin soils and rapid drainage of the rock faces, making the summit areas botanically distinct from the surrounding cerrado and well worth the additional scramble required to reach them.

Cerro Corá is the site where the War of the Triple Alliance — one of the most destructive conflicts in 19th-century South America — reached its final and most symbolic conclusion, and the monument on the hilltop is the most important national commemorative space for this defining event in Paraguayan history.

The park protects one of the last fragments of cerrado habitat in Paraguay, hosting species found nowhere else in the country, including the maned wolf, giant anteater, marsh deer and the rare Chaco eagle, all of which require large connected habitat areas that the park alone cannot fully provide.

The combination of significant military history and intact natural environment within a single protected area is unusual in the region and makes the park a compelling destination for visitors with interests in either history or wildlife.