While you can see the "highlights" of Pompeii in about 4 hours, truly experiencing the archaeological site can easily take a full day or even two. The site covers approximately 66 hectares (about 163 acres), with around 44 hectares currently excavated. If you want to visit the most famous villas, such as the Villa of the Mysteries, walk the Via dell'Abbondanza, and explore the forum, amphitheater, and various bathhouses, you will need at least 6 to 8 hours. Many visitors find that a half-day is exhausting due to the uneven Roman cobblestones and lack of shade, especially in the Italian summer. For history enthusiasts in 2026, a "full day" approach allows for a mid-day break in the modern town of Pompei for lunch, followed by a late-afternoon return when the light is better for photography and the large tour bus crowds have begun to dissipate.