To get the Riding in Style Achievement, you need to ride all 3 different mounts, the Regal Tiger, the Brilliant Beetle and the Big Beak.
To find the Regal Tiger, you need to search the Dry Savannah for a ?.
To find the Brilliant Beetle, you need to search the Jungle for a ?.
To find the Big Beak, you need to search the Jagged Peaks for a ?.
You can view the video below if you are having issues.
Thanks
KP