Social media has transformed the landscape of tourism marketing by redefining how destinations communicate, engage, and build relationships with potential travelers. In the context of understanding tourism marketing, social media serves not merely as a promotional tool but as a dynamic platform that integrates communication, branding, consumer engagement, and market intelligence. Its role in destination promotion is significant because tourism products are intangible, experiential, and highly dependent on perception. Social media enables destinations to present vivid, interactive, and user-driven representations that reduce uncertainty and influence travel decisions. One of the most important roles of social media in destination promotion is enhancing destination visibility and awareness. Platforms such as Facebook, Instagram, YouTube, and X allow tourism boards and marketers to reach global audiences at relatively low cost compared to traditional media like television or print advertising. Through visually appealing images, short videos, reels, and live sessions, destinations can showcase natural attractions, cultural heritage, festivals, cuisine, and local experiences. This visual storytelling creates emotional appeal, which is crucial in tourism marketing because travelers often make decisions based on aspirations and lifestyle alignment rather than purely rational evaluation. Social media also plays a central role in shaping destination image. Destination image refers to the perceptions, beliefs, and impressions that tourists hold about a place. In tourism marketing, managing and influencing this image is essential for competitiveness. Official destination marketing organizations (DMOs) use social media to craft consistent brand messages, highlight unique selling propositions, and differentiate their destination from competitors. At the same time, user-generated content (UGC), such as travel photos, reviews, blogs, and vlogs, significantly contributes to shaping destination image. Travelers often trust content created by other tourists more than official advertisements because it is perceived as authentic and unbiased. Therefore, social media creates a dual communication system where both marketers and consumers co-create the destination’s image. Another critical role of social media in destination promotion is its influence on consumer decision-making. The tourism buying process typically involves need recognition, information search, evaluation of alternatives, purchase decision, and post-purchase behavior. Social media impacts each stage. During the information search stage, travelers use hashtags, location tags, and reviews to gather detailed information about attractions, accommodations, restaurants, and local experiences. During evaluation, comparisons are made based on ratings, comments, and shared experiences. Positive reviews and visually compelling content can strongly influence booking decisions.