Update on this thread after few months... So this couple already had a honeymoon planned to thailand.... which was obviously a surprise to me and since its a close friend, i didn't want to spoil it by telling i had another plans. I am gifting them a 2nd honeymoon/Vacation in december end to them for 10 days. This will include christmas & new year. So far, i like Paris and Switzerland as the couple wants to go to some place cold, really cold.

Any more suggestions?