Learn to do a solo sky dive for the same reasons listed in the CraveTime article Tandem Sky Diving.
The time involved depends on the course. Some sky diving places conduct two day courses. The first day is for learning about sky diving, and on the second day you do a solo dive.
One for the adrenaline junkie.
While people have been bungee jumping in Vanuatu for hundreds of years, commercial bungee jumping only started in the mid 1980's.
Book in advance, turn up early, get on the gear, meet the sky diver whose life you putting your hands into, go through the drill, jump on the plane, jump off the plane, jump back on the plane, fly, jump again ... enjoy the experience.
How long does a sky dive take? A 13,000 feet jump typically takes around 5 to 8 minutes, including a free-fall of about 60 seconds. However, time will probably feel distored.

While the jump itself will only take a few minutes, the preparation, waiting and flight may add up to over an hour.