Prepare for some top secrets to be revealed. To celebrate the launch of the new cosmic-themed On the moon honeymoon hub, travel club Mr & Mrs Smith conducted a survey on 500 Singaporeans who have been on a honeymoon. The results were astonishing.  Which honeymoon destination is trending? Hint. Mr & Mrs Smith identified five trending long-haul destinations from around the world, and given the choice to honeymoon again this year, the survey said: ★ An overwhelming 73 per cent would head to Japan!★ 22 per cent would choose Argentina ★ 4 per cent would want to explore India ★ 3 per cent would opt for Sri Lanka ★ Just 0.8 per cent…