watch 01:12 The Loop (Movies) Do you like this video? Expanded Dune This article or section refers to elements from Expanded Dune. Mount Syubi is a mountain on the planet Caladan. It could be seen from Castle Caladan, the ancestral home of House Atreides. Retrieved from "https://dune.fandom.com/wiki/Mount_Syubi?oldid=35396" Categories: Expanded Dune Landmarks House Atreides Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.