Gambier Mountain is a city, not a mountain, is the second largest city in South Australia, located on the slopes of an extinct volcano. There are special cave gardens, cultural heritage buildings, craters. The city is clean and tidy, the house is beautiful, there are some architecture and restaurants with age. Blue lake and valley lake are volcanic lakes, one blue and one green, both beautiful. Mount Schank The crater on the top of the mountain is a large cave pit. There are paths along the top that can be circled for a week. I walked for about half an hour. The crater is already full of green plants, but there is ash next to it, which is a very special scenery. From the top of the mountain, there are pastures around, cattle and sheep flocks, as good-looking.