1. Arthur’s Seat is an extinct volcano located in Edinburgh, Scotland. It is the highest point in Holyrood Park, rising 251 meters (823 feet) above sea level, and offers stunning views of the city from its summit. The hill has a rugged and rocky terrain along with lush greenery, providing a perfect spot for hiking and walking.

2. As it is a public park, it is open all year round, and there is no entry fee. There is no specific working time, and you can visit the park any time during the day. You can contact the visitor center at Holyrood Park, which is open daily from 9:30 am to 3:30 pm, on 0131 652 8150.

3. As mentioned earlier, entry to the park is free, and no tickets are required. You can reach Arthur’s Seat by walking from the city center, which may take around 30 minutes. Alternatively, you can take a bus or taxi, and the nearest bus stop is at Holyrood Palace. There are various tour operators that offer guided tours to Arthur’s Seat, and you can book tickets for these tours in advance. You can also join a group tour that includes transportation by minibus or coach.