Well, we went on vacation to Cambria, which is just down the coast from San Simeon.
I was going to propose to her at sunset, up on this beautiful cliff called Ragged point. Unfortunately there was a CHP officer in front of us on the freeway, so I knew we were going to make it up there for sunset.
So, I decided to pull over and we would walk the beach and pick up stones/jade/sea shells. That's one of our favorite things to do while vacationing there. After about 20 minutes I called her over so she could look at all the jade and shells I had found. Hidden at the bottom of my hand was her ring. So as she pulled the rocks out of my hand to look at them, she finally got the bottom and found her ring.
After she stopped screaming with joy, I went to one knee and asked her to marry me.
She never knew it was coming. Needless to say we were so jazzed, that we drove home that night to show our parents the ring.
I had actually stopped by her folks house before we left and asked her Dad's permission for her hand, so both of her parents already knew.
Anyway, that's how I proposed.