The cruise industry is undergoing a significant transformation as it shifts towards adopting sustainable energy sources to reduce its environmental impact. Traditional cruise ships relying on fossil fuels are now exploring cleaner fuel technologies like hydrogen, green methanol, and batteries to achieve a greener future for ocean travel. Hydrogen-powered fuel cells are gaining attention for their ability to produce zero carbon emissions, but challenges in storage and energy density exist. Green methanol, a renewable fuel synthesized through eco-friendly processes, offers a greener alternative to traditional fuels, albeit with safety concerns and space requirements. Battery-powered ships are becoming viable for short-distance cruises, providing zero emissions and reducing reliance on diesel engines in ecologically sensitive areas. Despite being a temporary solution, Liquefied Natural Gas (LNG) is widely used in the cruise industry, with a focus shifting towards long-term zero-carbon options like hydrogen and biofuels. The future of cruise travel embraces sustainable propulsion systems and green fuels to achieve a more environmentally friendly industry.