Spanish fuel supplier Cepsa has initiated the supply of second-generation biofuels to vessels of Norwegian Cruise Line Holdings (NCLH) at the Port of Barcelona, marking a significant step towards decarbonization in the cruise industry. The biofuels, derived from used cooking oils, contain a 24% sustainable component, leading to a reduction of approximately 3,000 tonnes of CO2 emissions. Cepsa plans to continue these sustainable fuel supplies in the following months, with a focus on the Ports of Barcelona and Algeciras. The company also expressed intentions to supply synthetic marine fuels like green ammonia or methanol in the future from their Andalusian Green Hydrogen Valley project. This move aligns with Cepsa's ambition to become a prominent biofuel producer in Spain and Portugal by 2030, with a production capacity of 2.5M tonnes annually and a significant green hydrogen production capacity of 2 GW. The article underscores the industry's increasing interest in sustainable practices and the importance of alternative fuels for achieving carbon neutrality. It also highlights the Cruise Lines International Association's commitment to transitioning towards low-carbon fuels in the pursuit of net-zero carbon cruising by 2050, emphasizing the need for rapid decarbonization and access to environmentally friendly energy sources.