Answer: They go to the Dead Sea! 🌊👻
Explanation: Ghosts, being supernatural beings, are often associated with the afterlife. The Dead Sea is a fitting destination for them because of its name and reputation for having such a high salt content that nothing can live in its waters. The play on words between "Dead" and "ghosts" adds a humorous twist to the riddle. The use of the ghost emoji further emphasizes the lighthearted and playful nature of the answer.
