A Brazilian federal court has halted a controversial zipline project planned for the iconic Sugarloaf Mountain, marking a significant legal victory for environmentalists and heritage advocates who argued the development threatened one of the country’s most famous natural landmarks. The ruling, issued on April 1, 2026, by a federal judge in Rio de Janeiro, immediately suspends the construction and nullifies previous approvals granted for the project.
The project, spearheaded by the tourism operator Companhia Caminho Aéreo Pão de Açúcar, aimed to introduce a high-speed zipline attraction connecting Sugarloaf Mountain to the nearby Morro da Urca. The plan proposed four parallel ziplines stretching approximately 755 meters, allowing visitors to descend from a height of nearly 396 meters above sea level at speeds approaching 100 kilometers per hour. Developers argued the attraction would modernize tourism offerings and enhance visitor experience at one of Brazil’s most visited destinations.
Construction of the zipline began in September 2022, following approval from Brazil’s national heritage body, Brazilian Institute of Historic and Artistic Heritage (Iphan). However, the project quickly became a focal point of controversy. Environmental groups, local residents, and conservationists raised concerns about drilling into the mountain’s ancient rock formations, estimated to be hundreds of millions of years old, and the potential ecological disruption caused by construction and future operations.
Legal challenges emerged as early as 2023, when activists filed lawsuits arguing that the project lacked sufficient environmental justification and failed to involve adequate public consultation. Critics also emphasized that Sugarloaf Mountain is part of the Carioca Landscapes between the Mountain and the Sea, designated as a UNESCO World Heritage Site in 2012. They warned that introducing commercial infrastructure such as ziplines could compromise the site’s cultural and natural integrity.
In his ruling, Judge Paulo André Manfredini declared that the administrative approvals granted by Iphan were invalid, citing “insufficient justification” for the intervention and a lack of broad societal debate. The court also ordered both the developer and Iphan to pay approximately 30 million Brazilian reais (around $5–6 million) in collective moral damages, underscoring the “inestimable value” of the landmark not only for Brazil but for the global community.
The decision represents a major setback for the tourism sector in Rio, where Sugarloaf Mountain attracts more than 1.6 million visitors annually, primarily through its historic cable car system. Proponents of the zipline argued that the new attraction would diversify tourism offerings, increase revenue, and position Rio as a hub for adventure tourism. They also claimed that the project had already been largely completed and complied with regulatory standards.
However, opponents viewed the ruling as a crucial step in protecting Brazil’s environmental heritage. Activists celebrated the decision as a “huge victory,” asserting that economic interests should not override conservation priorities. Environmental groups also warned that the noise, increased foot traffic, and structural modifications could harm wildlife and degrade the landscape’s aesthetic value.
The broader impact of the ruling may extend beyond this single project. Analysts suggest it could set a legal precedent for future infrastructure developments in protected heritage sites across Brazil and other UNESCO-listed regions worldwide. It also raises questions about how governments balance tourism-driven economic growth with environmental preservation, especially in cities heavily reliant on international visitors.
Despite the setback, the developer is expected to appeal the decision, potentially prolonging the legal battle. For now, construction activities remain suspended, leaving the future of the zipline project uncertain. The case highlights ongoing tensions between modernization and conservation, as Brazil navigates the challenge of preserving its natural icons while expanding its tourism economy.
