Sabrina, Down Under is a 1999 television film produced for ABC. It is a sequel to Sabrina Goes to Rome and is a companion to the Sabrina, the Teenage Witch TV series.
Sabrina travels to Australias Great Barrier Reef with Gwen, a fellow witch from England, for a weeklong vacation where they try to help protect a hidden mermaid colony whose habitat is threatened by ocean pollution, and by local marine biologist Dr. Julian Martin, who is determined to find the colony as his claim to fame. While Sabrina finds a friendship with Barnaby, a merman from the mermaid colony, Salem the cat finds a possible romance with another witchturnedintoacat named Hilary, but finds Sabrinas problems interfering with his plans. In order to prevent Julian from launching a search for the mermaid colony, she casts a spell to create a storm to keep him in port, which succeeds except that a lightning bolt knocks Sabrina unconscious, and when she comes to she learns she has lost her powers, at least temporarily.As part of the Sabrina, the Teenage Witch book collection, a book titled Sabrina, the Teenage Witch Sabrina, Down Under is available. The book is written by Ellen Titlebaum. It is unnumbered, as is the first films book adaptation. The other books in the series are numbered in reading order. ........
Source: Wikipedia