Coastal and marine tourism is the largest segment of the travel industry, historically associated with the Sun, Sand and Sea imagery of beach holidays, and more recently inclusive of a broad range of boating and watercraft activities within what has been termed Blue Tourism. The health and safety of visitors in water-based environments is particularly important as the consequences of an incident can result in drowning or more serious injuries than on land. This chapter describes the activities of tourists in coastal and marine environments, where they are likely to experience difficulties and the services available through various government agencies and organisations to assist them. A particular focus is on the legal responsibilities and duties of care owed to tourists, recognising that for many visitors water-based environments are very unfamiliar settings. The chapter concludes by looking at innovations and initiatives in coastal and marine tourism in response to COVID-19 and how safety contributes to greater enjoyment of the marine environment.