There are a number of important sights in the Ostia Antica archaeological park, including the necropolis, the Baths of Neptune, the amphitheater, the Forum, the Collegiate Temple, and Via Casa di Diana, a main street lined with original apartment buildings and taverns. Given the historical importance of the port city and the collection in its archaeological museum, visiting on a private tour with in-depth explanation adds another layer to the experience. If visiting with kids, consider booking a family-friendly, small-group guided tour. The site is most often visited on half-day tours from Rome.
If you're not taking an Ostia tour that includes transportation from Rome, the best way to reach Ostia Antica is by train. Take Rome's metro to the Piramide stop, which is also the Roma Porta San Paolo train station. From there, you can take a train to Ostia Antica. (Following signs to Lido will take you to the right spot.)
Ancient Ostia can get hot midday in summer. From June to October, visit in the early morning or late afternoon to beat the heat. No matter when you go, keep in mind that the site is outside—dress accordingly.
Modern Ostia, near the Ostia Antica site, is a popular resort town that’s perfect for a beach break. Visit the archaeological ruins in the cool morning hours, then relax on one of the town's beaches in the afternoon.
