‘titrebSummary’/titrebThe legislative renovation of national parks raises questions about the nature of the law in protected areas. Would it be conceivable to think of the formation of a more negotiated right than imposed? The question may legitimately arise in the case of the Amazon Park of Guiana (PAG), which includes several indigenous and local communities expressing sociocultural diversity and marked interference in the accession area. The ordinary law thus combines with a right derived from practice and endogenous to the groups. This situation leads us to reflect on the relationship between the two legal systems (positive law and endogenous law) on the basis of the example of the Amerindian community of Wayana. We adopt the hypothesis of a process that integrates the superimposed regulations, those ‘from the bottom’ and those ‘from the top’, by means of negotiation, which leads to the definition of a negotiated right, which is the result of syncretising patterns of behaviour ‘to be’ and ‘to be’ concerted from an intercultural perspective.