This Buster Keaton short has a very good title. But as you will discover there really isn't much actual ballooning in it. As you might expect from a short film its pretty simplistic. It begins at a fun-house where Keaton accidentally hitches a ride in a hot air balloon. He is propelled miles away and winds up in the wilderness. He meets a girl out here who isn't initially too keen on him but together they get in to all manner of scrapes including some memorable scenes with grizzly bears.
It would be fair to say that this is not a great feature. It doesn't have a very cohesive narrative and essentially boils down to a series of gags loosely connected into the synopsis above. It's really mainly recommended to fans of Keaton and/or silent slapstick in general. Others might be a bit underwhelmed.