Yes, it is very much more dangerous. Base Jumping is where you jump off something very big with a parachute on. It's more fun and dangerous than ski diving, because you only have a split second to react and deploy your schute. Also, there is a chance that you could knock into whatever you jumped off of. I've done base Jumps off of buildings, bridges, cliffs, and once I went to mexico and jumped down into a giant sink hole, then climbed out. it was amazing.