"Hallmark Christmas Island" was filmed on location in the Bahamas, specifically at the Atlantis Paradise Island resort in Nassau. The resort features stunning beaches, crystal-clear waters, and luxurious amenities, making it the perfect backdrop for a heartwarming Christmas movie. The island's warm climate also helped create the perfect holiday atmosphere, with palm trees and tropical flowers providing a lush backdrop for the movie's romantic scenes. The resort's unique architecture and charming decor added an extra layer of charm to the movie, making it a memorable viewing experience for viewers around the world.