Thanks to the Jurassic Park: Operation Genesis Wiki for the original article.
The Ballon Tour is an attraction that can be unlocked by researching it. A Hot Air Balloon will ride all around the park, supervised by Robert Muldoon like the Safari Cruise.
The building looks like a platform with green roof. On the top, there is a weather caster with twin stairways on both sides and then there is a helipad like dock where they land the Hot Air Balloon.
They cost $50 per ride they are only closed during storms. If in progress during that time, the balloon will get struck by lightning and it might crash.
The player places the points the balloon will go to manually. A maximum of 4 points are permitted with editing the games files.