The historic Walls of Cartagena offer a captivating glimpse into the city's colonial past, providing panoramic views of the Caribbean Sea and the vibrant old town. This UNESCO World Heritage site is freely accessible for exploration, primarily on foot, though some sections may have steps or uneven surfaces, limiting full wheelchair accessibility. Visitors can easily enjoy a solo stroll, or opt for a guided walking tour to gain deeper historical insights, with no seasonal restrictions on entry, although early mornings or late afternoons are recommended to avoid the intense heat and humidity, especially during the December-April dry season. A typical visit duration ranges from 1 to 3 hours, depending on the extent of exploration, and while walking the walls is free, costs apply for guided tours or refreshments at bastions; comfortable shoes, water, and sun protection are highly advised for this rewarding experience.