How do you get into base jumping?

Answer 1

You must first learn to skydive from much higher altitudes at a skydiving center. Take an Accelerated Freefall course at Skydive Hibaldstow near Leeds. once completed, you will need to rack up your jump numbers to around 500. Learn how to do formation skydiving, freefly, tracking, fly your parachute. After this you may be ready for a BASE First Jump Course. All this should be possible in about 3 years if committed and properly resourced. Most importantly, do not compromise on your training, or you will not be prepared for BASE and your likelyhood of an accident will be higher.

Answer 2

Get out of what? Base means buildings, antennas, spans (bridges) and earth (cliffs). You just jump off the roof, railing, edge, or whatever.