The Ba'aten Peninsula is an area in the Morfan Province of Cardassia. The peninsula juts out into the Morfan Sea and is unique in that it is the only area of Cardassia to retain its rainforests after the climatic changes and drought that struck Cardassia leaving much of the rest of the planet a desert.
This unique environment makes the Peninsula popular with tourists. (DS9 novel: A Stitch in Time)