1. The Twelve Apostles are a group of limestone rock formations off the coast of Victoria, Australia. There are actually only eight formations left standing, as erosion has caused four of them to collapse. The rocks were originally part of the mainland, but over time, erosion caused the sea to carve out the cliffs and isolate the rocks. The Twelve Apostles are a popular tourist destination and are considered one of the most spectacular natural attractions in Australia.

2. There is no specific working time for the Twelve Apostles, as they are a natural attraction that can be viewed at any time of day. However, the nearby visitor center has specific hours. The center is open daily from 9am-5pm and can be reached at +61 3 5598 6000.

3. There is no admission fee to view the Twelve Apostles, as they are a natural attraction that can be observed from various lookout points. However, there are fees for parking and access to certain areas. To reach the Twelve Apostles, the best way is by car, as it is roughly a 3 hour drive from Melbourne. Alternatively, there are bus tours available that can take you to the site.