Yes, you can visit and hike Mt. Vesuvius without a guided tour, but it requires advance planning because tickets must be purchased online in 2026; they are no longer sold at the site and often sell out 30 days in advance. To go "self-guided," you can take the Vesuvio Express bus from the Ercolano Scavi station or drive to the "Quota 1000" parking lot and walk to the trailhead. The main trail, the Grand Cono, is a 4km round-trip hike that is relatively easy and takes about 2 hours to complete. While you don't need a guide to walk the path, you are required to stay on marked trails for safety. Exploring the volcano independently allows you to set your own pace and enjoy the panoramic views of the Bay of Naples without the rigid schedule of a group. However, because parking is limited and logistics can be tricky, many travelers still prefer combined "Pompeii and Vesuvius" shuttle packages to avoid the hassle of coordinating separate transport and entry tickets.