A major component of the project is Marine Participatory Three Dimensional Modelling (P3DM), a community-based and stakeholder based process, which integrates local spatial knowledge with topographic data to produce a physical 3-D model assembled by mapping participants. The value of a marine P3D Modelling process is grounded in the engagement of stakeholders from the beginning of the planning process, which may result in more effective, transparent and durable interventions and can foster a collective decision-making process that may engender ownership of spatial planning processes. A marine P3D Model may constitute a powerful communication and negotiation tool for an actor-led marine spatial planning. This approach will enable information that is only available with certain stakeholders to become available with everyone, greatly increasing the knowledge of all participating stakeholders, but also with the government and general public.