Shoreline on Titan?

Caption originale:"This SAR (Synthetic Aperture Radar) image of the surface of Saturn's moon Titan, was obtained by the Cassini spacecraft on Sept. 7, 2005. The bright, rough Region on the left side of the image seems to be topographically "high terrain" that is cut by "channels" and "bays".
The boundary of the bright (rough) Region and the dark (smooth) Region appears to be a "shoreline". The patterns in the dark area indicate that it may once have been flooded, with the liquid having at least partially receded.
The image is 175 Km high and 330 Km wide (about 109 by 205 miles), and is located at 66 degrees south latitude, 356° West Longitude in the Southern Hemisphere of Titan".