Aldera lake

A vast lake lay on the site of Aldera, the capital of the planet Alderaan. The Royal Palace overlooked the lake which was in fact a geologically recent meteor crater. It had formed around 30,500 BBY and had subsequently filled with water from the local subterranean aquifers. The city of Aldera itself was built on an island—or more precisely a peninsula—overlooking the lake. Visitors commonly reached the city by crossing the lake by boat.

Text and facts from the “Aldera lake” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.