Small Island Developing States are known to be extra sensitive to environmental changes due to their geographical location and characteristics, and many are known as luxurious tourist destinations. This study explores how Mauritius and the Seychelles are affected by and deal with climate change and the negative impacts of tourism. The study connects to globalisation and sustainable tourism frameworks while analysing vulnerability and resilience in both countries, as well as how the countries work towards the 2030 Agenda for Sustainable Development. The method used is a mixed qualitative method with interviews and a text analysis of websites and official documents. The result indicates that both Mauritius and the Seychelles are highly vulnerable to climate change, especially in their coastal zones, which is further increased by tourism practices and development of tourism facilities. The study also highlights that both countries lack resilience to environmental changes. Both Mauritius and the Seychelles strive to work towards the 2030 Agenda, through policymaking on state level and through non-governmental organisations aligning their projects to the Sustainable Development Goals. The result also shows that there is a need to create a more sustainable tourism sector in each country to protect both the environment and the countries’ economies. This study aims to be a contribution to the research field of Small Island Developing States and to increase the understanding of Mauritius and the Seychelles’ particular characteristics and vulnerabilities.