[Merlin, who is feeling a lot more relaxed these days Because Of Reasons, loves the chance to abuse the hot air balloons, which he finds rather fun.]
[So if you end up wanting one of the items floating around, or even went yourself to get a balloon ride, you'll find him ready to join you in it. Hey, they have to rescue these floating things, right? Obviously Merlin himself can't possibly find a different way to reach them!]