Abstract: Coastal ecosystems provide numerous benefits to people, including supporting livelihoods through fishing and tourism as well as reducing risk to coastal hazards by attenuating incoming waves. Yet, competing needs for development can threaten those ecosystems. During this session we will go in-depth with the InVEST Coastal Vulnerability Model after introducing the suite of marine-focused InVEST models that address these trade-offs and highlight the role of healthy ecosystems. The Habitat Risk Assessment model assess the cumulative effect of multiple human activities on ecosystems. The Recreation and Tourism model explores the value of coastal ecosystems to provide recreation opportunities and support livelihoods in the tourism industry. The Coastal Vulnerability model measures how changes in ecosystems lead to changes in risks from coastal hazards. The goal of this session is to introduce the scientific underpinnings of these models and discuss different contexts in which to apply them. We will also explore the basic structure of InVEST models in general and learn about the InVEST file structure, the user interface, and types of model inputs and outputs. Focusing on the Coastal Vulnerability model, we will build familiarity with running and interpreting results and use exercises designed to illustrate how real-world planning decisions can be informed with quantitative model results.