The "White (and Bright) Cliffs" of Dione (context image)

Caption NASA:"This splendid view showcases Dione's tortured complex of bright cliffs. At lower right is the feature called Cassandra, exhibiting linear rays extending in multiple directions.
This is the Trailing Hemisphere of Dione; North is up.

The image was taken in polarized green light with the Cassini spacecraft narrow-angle camera on July 24, 2006 at a distance of approx. 263.000 Km (about 163.000 miles) from Dione. Image scale is roughly 2 Km (such a little more than 1 mile) per pixel".