It’s entertaining to watch the bus tourist groups in Yellowstone. They’re likely from China, possibly Taiwan. Because these groups are time constrained, they’re always in a rush. First they rush off the bus, jockey for position to take a picture of their significant other, at least one strikes a sexy model pose. Next switch positions. Soon after the guide calls out that time is up and they rush back onto the bus. Don’t know why, but they all seem to have Nikon DSLRs – no Canon in sight.