In this simulation, students work in groups to design a marine reserve in a hypothetical island state called “Udubia.” After learning about marine reserve design, students will choose characters that represent a variety of stakeholders, be placed in like-minded groups, create a reserve design based on provided data sources, and defend it in a presentation and debate. An optional individual assignment allows them to develop and defend their positions separately by writing a letter to the “governor.” At least two weeks will be needed to complete this exercise, including 1-3 class periods, although it can be modified for shorter use.