Floral Millennium Seafood Banquet Hall. Floral Millennium Seafood Banquet Hall in Caotun is a seafood restaurant located in Nantou City, Nantou County. The venue features spacious dining areas and a large parking lot, making it an excellent choice for banquets. Floral Millennium Seafood Banquet Hall in Caotun is a seafood restaurant located in Nantou City, Nantou County. The venue features spacious dining areas and a large parking lot, making it an excellent choice for banquets. Address: 南投縣草屯鎮成功路一段758之1號 Hours: 00:00–23:59 Nantou