Yes, you can walk up Mount Vesuvius without a personal guide, but you cannot enter the crater area without a pre-purchased ticket and a time slot. In 2026, access to the "Gran Cono" (the Great Cone) is strictly regulated to manage crowds and ensure safety on the active volcano. You must book your tickets online in advance through the official Vesuvius National Park website, as there is no ticket office at the summit. Once you arrive at the higher parking area (the 1,000-meter mark), you can hike the remaining path independently. While a private guide is not mandatory, the park often provides "volcanological guides" at the crater rim who are included in the price of your ticket; they stand at key points to provide historical context and safety information in multiple languages. In 2026, the hike takes about 30 to 50 minutes and is moderately steep but well-maintained. It is vital to check the weather and volcanic activity alerts on the day of your visit, as the park can close without notice for safety. Walking up "independently" is a great way to enjoy the breathtaking views of the Bay of Naples at your own pace, provided you have secured your entry credentials well before you start the drive up.