La Campana sits on the northern edge of the city, a low platform of basalt-faced mounds rising out of what is now a quiet residential neighbourhood. The site covers about fifty hectares of which only a small portion has been excavated and opened to the public, but the part you can walk is enough to give a sense of the scale.
There is a ball court, several mound complexes, and the remains of an elaborate drainage system. Information panels are limited; arrive with some background or just enjoy the setting — the Volcan de Fuego rises directly behind the site, and on a clear morning the view is unforgettable. Entry is cheap and the site is rarely busy.