1. Mt. Etna, also known as Monte Etna, is an active stratovolcano located on the east coast of Sicily, Italy. It is one of the most active volcanoes in the world and has a complex history of eruption. Here are some interesting facts:

- With a summit elevation of about 3,329 meters (10,922 feet), Mt. Etna is the highest active volcano in Europe.

- The volcano has been erupting for over 500,000 years, with the first recorded eruption dating back to around 1500 BC.

- Mt. Etna has a unique ecosystem, with various plant and animal species adapted to the volcanic environment. It is home to the endemic Etna broom and Etna vole.

- The volcanic soils of Mt. Etna are rich in minerals and nutrients, making the region ideal for cultivation. The surrounding areas are known for their vineyards and olive groves.

- Mt. Etna is a popular tourist attraction and offers stunning views of the surrounding landscape. Visitors can explore the volcano’s craters, lava flows, and enjoy hiking trails.

2. The working time of Mt. Etna depends on the volcanic activity and weather conditions. It is best to check the official website or contact the Parco dell’Etna (Etna Park) for the most up-to-date information. Their phone number is +39 095-643857.

3. Ticket information and transportation:

- There are several ways to reach Mt. Etna. The most common starting point is the cable car station located in Piano Provenzana. From there, visitors can take a cable car and then a 4x4 bus to reach a higher altitude.

- The ticket prices for the cable car and 4x4 bus vary depending on the season and the chosen route. It is recommended to purchase tickets in advance or check the official website for detailed information.

- Additionally, there are guided tours available that provide transportation and guide services for a more comprehensive experience of Mt. Etna.

- It is important to note that hiking to the summit of Mt. Etna is only allowed with a licensed guide due to safety concerns.

- Visitors should also consider the weather conditions and dress accordingly, as the temperature and climate can vary significantly on the volcano. It is advised to wear comfortable clothing, sturdy shoes, and bring layers for changing temperatures.