Björn's official Instagram account published a short video of Björn on holiday somewhere in the Indian Ocean (a guess on my part based on the images shown) featuring him on a beach, cycling, walking on decking, kayaking, paddling in the sea, preparing to snorkel, more kayaking and at his laptop saying, "Merry Christmas everybody." 

These were all shown with ABBA's Happy Hawaii playing in the background - although the title of the film on his Instagram said it was Hawaii.