The 45-yr-old singer may be planning a destination wedding in the exotic island of Tahiti which may take place on 48-yr-old Parker's super yacht Arctic P, Daily Mail reports.
Popular Hollywood A-listers have been known to visit Tahiti, including newlyweds Jennifer Aniston and Justin Theroux who had their honeymoon in Bora Bora last year.
Carey and Parker announced their engagement on January 21 in New York, the Australian billionaire had given her a $7million engagement ring.
The engaged couple are still technically married to other people but are moving ahead with plans for their wedding.
Mariah was first married to music producer Tommy Mottola from 1993 to 1998 after which she tied the knot with Nick Cannon ten years later in 2008. She has a set of four-year-old twins Monroe and Moroccan from her marriage to the media executive.
Meanwhile, Parker has three children with soon-to-be ex, second wife, Erica who is now in a relationship with popular singer Seal.