Shangri-La is a large, dark region of Saturn's moon Titan at 10°S 165°W. It is thought to be an immense plain of dark material. It is thought that these regions of Titan were seas, but that they are now dry. Shangri-La is studded with bright 'islands' of higher ground. (wikipedia entry)
A albedo feature is an area which shows a contrast in brightness or darkness (albedo) with adjacent areas. On Titan they are named after sacred or enchanted places, paradise, or celestial realms from legends, myths, stories, and poems of cultures from around the world.
Image Source. Marker locations are approximate and may not always appear to align with image on map.