This birthday I did hot air ballooning 3000 ft above Snohomish County of Seattle. The clear sky enhanced the pleasure.
Hot air balloon works on a simple principle that hot air is lighter than surrounding cold air. This difference causes balloon to rise. First manned hot air balloon was invented by the French and in their honor, the organizers always celebrate success of a flight with Champagne.
Here is the link to the ballooning website - http://www.airialballoon.com/