The blue economy focuses on sustainable and regenerative development associated with resources and sectors related to the aquatic environment (ocean, seas, rivers and lakes). The blue economy encompasses traditional economic activities such as fishing, aquaculture and processing industries, maritime transport, port facilities and logistics, maritime infrastructure and works, shipbuilding and maintenance, coastal tourism and nautical tourism, sports and culture, and education, training and scientific research. It also includes emerging economic activities such as renewable ocean energies (wind, wave and tidal), marine biotechnology (biofuels, genetic resources, pharmaceuticals), maritime surveillance, carbon capture and sequestration, among many others. Each of these activities faces challenges associated with decarbonisation, digitalisation and the circular economy, while offering vast opportunities for innovation, entrepreneurship, investment and the development of professional careers, boosting the creation of qualified jobs. The blue economy is driven by several critical factors, including the promotion of a healthy and resilient ocean, the protection of biodiversity, the existence and quality of basic sanitation, the creation and maintenance of vibrant ecosystems, and investment in knowledge, education and inclusive social development.