The coast is a dynamic landscape characterised by change. Although coastal change can provide opportunities to engage with the past as archaeological sites are exposed and uncovered, it also means that climate change pressures are likely to exacerbate and accelerate the inevitable loss of coastal heritage. Many projects and initiatives focus on protecting and saving threatened sites, but there has been less attention to developing tools that will help the heritage profession manage and communicate about loss. New strategies are needed to help heritage professionals engage with communities confronted with the vulnerability of valued coastal heritage sites, and to counter perceptions of mismanagement and misunderstanding. This paper aims to develop language to better articulate the ways in which change and loss are likely to be experienced at coastal heritage sites, so that the challenges and opportunities presented by each situation may be fully appreciated by heritage managers and communities navigating these changes. It does not address the question of how to preserve and protect, but conversely seeks to explore how to respond to and understand loss.