Without doubt, it takes a certain bloody-mindedness to construct a railway through the middle of a rainforest. Indeed, when plans for a route across southern Brazil's Atlantic Forest were first raised more than 150 years ago, several engineers deemed it impossible. Yet by 1885, thanks to the toil of some 9,000 workers, it was complete, and what started as a way of transporting grain to the coast is now one of Latin America's most thrilling journeys.
The so-called Serra Verde (or Green Saw) Express operates a daily there-and-back route between Curitiba and Morretes. Take time to stroll both, with the former famed for its eco-minded layout - its pedestrianised downtown was one of the first big streets in Brazil to ban cars. Visit the eye-shaped Oscar Niemeyer museum, a fascinating insight into the architect who designed much of the country, or stretch your legs on the 15km trail to Paranaguá through Marumbi NP. Meanwhile, the whitewashed Portuguese houses of Morretes are surrounded by forested hills and plenty of trails leading to a series of waterfalls amid the Serra da Graciosa range.
The train departs Curitiba at 8.15am and returns by 6.30pm each evening, with around 3.5 hours of journey time in each direction. Along the way, you'll skirt bridges, mountain canyons and plenty of lush rainforest. But it's definitely worth booking ahead, particularly between the summer months of December and February, with the best views on the outbound trip found on the left-hand side.
