Parque Arqueológico Joya de Cerén, a UNESCO World Heritage site known as the 'Pompeii of the Americas,' offers a unique glimpse into ancient Mayan commoner life, preserved by volcanic ash. The site features elevated walkways making it largely accessible, though transport is usually by car or tour. While independent visits are possible, a guided tour is highly recommended to fully appreciate the archaeological significance and context, as signage may be limited. It is open year-round, with the dry season (November-April) generally being most comfortable, and typically requires an entrance fee of around $5-10 USD for foreigners. A typical visit lasts 1-2 hours, allowing ample time to explore the excavated structures and the small on-site museum. It's often combined with visits to nearby archaeological sites like San Andrés for a comprehensive historical experience.