for me, it was several steps. As a young kid, Sea hunt was my favorite show, and I decided I wanted to do that , then later, watching Jacque Cousteau specials rekindled my interest. But, school, work, etc kept me from trying it.
Then about 15 years ago, I was watching a Discovey channel special with my wife about divers traveling the South Pacific looking for sharks. Every time sharks were spotted, they geared up and jumped in. I told my wife, "Some day I 'm going to do that." She looked at me like I was crazy, and said "not with me you're not."
Well, that again ended my dream. Roll forward a few years, and we were snorkeling in Cancun near Isla Mujeres, and witnessed divers in the water under us, and I again decided I wanted to try it.
Finally a couple years later:
(My sister was alread a diver), and about 7 years ago talked us into trying a discover scuba at the gym's pool.
Well, once I was under the water, I was hooked. I immediately signed us both up for scuba lessons, and never looked back.
By the way, a few years ago, we were in Costa Rica, and my wife and I (and my sister) booked the bull shark dive, so my wife is now offically also crazy.
Then