This research delves into the complex nexus between sustainable development and the participation of Indigenous Peoples (IPs), with a specific emphasis on Amerindians in Guyana. While sustainable development increasingly integrates into global policy, IPs have historically faced marginalisation, often finding their rights overlooked in discussions on climate change and sustainability. The inherent connection of IPs to their territories, marked by their role as stewards of the environment, showcases their critical importance in global sustainable practices. However, mainstream development often disregards the rich mosaic of Indigenous cultures, experiences, and worldviews. Utilising the Guyana-European Union Forest Law Enforcement, Governance, and Trade Voluntary Partnership Agreements (FLEGT VPA) as a case study, this research probes the intricate dynamics of a solution acclaimed for addressing deforestation and illegal logging. Central to the study is the exploration of participatory communication within this development intervention. By highlighting the potential of this communication approach, the study posits that IPs can actively engage, empowering them to reclaim their narrative and enhance their self-determination. Theoretical insights, which include postcolonial and subaltern studies, are complemented by several frameworks such as Communication for Development (C4D) and Communication for Social Change (CSC), among others. By employing a mixed-method approach encompassing individual interviews and focus group discussions, the research presents a comprehensive portrayal of IPs' perspectives on communication processes. The findings aim to augment academic discourse on the communication dynamics around sustainable initiatives, spotlighting avenues for more inclusive, patient, and equitable strategies in support of IPs and local communities. In essence, this thesis calls for an enduring commitment to bridge the chasm between vision and reality in sustainable development.