As of early 2026, access to the hiking trails of Mount Vesuvius National Park has faced periodic closures due to environmental safety risks and wildfire damage. Specifically, in late 2025, a significant blaze scorched over 500 hectares of the volcano's slopes, destroying pine forests and destabilizing the soil along the popular "Gran Cono" trail. For the safety of the 600,000+ annual visitors, authorities frequently suspend activities to facilitate firefighting efforts, clean up debris, and monitor the risk of landslides triggered by the loss of vegetation. Additionally, the park occasionally closes during periods of extreme heat or high seismic activity to protect tourists from the high-fidelity dangers of the active volcano's rugged terrain. It is a necessity for 2026 travelers to check the official park website before visiting, as access to the crater is strictly regulated via pre-booked time slots.