During my recent trip to Colombia, I had the opportunity to explore both Cartagena and Medellín in depth, which made for an unforgettable experience filled with highlights and some unexpected challenges. Cartagena captivated me with its charming colonial architecture and vibrant street life. Wandering through the historic walled city, I found countless colorful buildings, lively plazas, and local markets that gave a real sense of the city’s rich culture. Plus, the coastal vibes and Caribbean views made it a perfect place to relax. Medellín, on the other hand, surprised me with its modern urban atmosphere and remarkable transformation story. The visit to Comuna 13 was particularly memorable; once known for its troubled past, it now showcases vibrant street art and community-driven tours that tell stories of resilience and hope. However, I did face some setbacks, like dealing with food poisoning from local cuisine, which taught me to be more cautious about where and what I eat on such trips. Having quick access to pharmacies and knowing basic remedies was a lifesaver. If you're wondering which city to visit or how to plan your Colombia trip, I'd recommend considering what type of experience you want. Cartagena is great for those seeking history, beach vibes, and romantic walks, while Medellín offers a glimpse into urban renewal, arts, and an authentic city life. Don't miss the chance to try local seafood platters in Cartagena, but always stay mindful of food safety. Overall, both cities are worthy of a visit, and experiencing them back-to-back offers a well-rounded Colombian adventure. Making sure to book comfortable hotels, planning some downtime to enjoy amenities, and preparing for any health hiccups will help ensure your journey is as enjoyable and smooth as possible.