Lake Masad is a body of water on Cardassia and the largest lake on the entire planet. It is located in a high and barren mountainous area. The city of Masad is located nearby. Ghret Pa'Dar, Geleth Pa'Dar and other members of their two families spent summers at Lake Masad. (DS9 novel: The Never-Ending Sacrifice) In 2374, Elim Garak recalled Lake Masad when looking at San Francisco Bay. (DS9 novel: Hollow Men)