Six years ago I built a beautiful cedar deck. One day it rained before I had put stain on it and it turned a beautiful, deep yellow color. For reasons I've now forgotten I decided to stain it a dark brown, not quite the deep brown of a nice cherry wood but pretty close. 1.5yrs ago I took the stain off with the intention of applying another finish to it but I haven't done it yet and my neglected deck is in need of help. It has turned gray with the 1.5yrs of exposure to the elements and I would like to get it back to that beautiful, natural yellowish when it was new. For you wood experts, is it as simple as sanding off the weathered portion and applying a stain? I haven't done a whole lot of researching yet but when it was new I recall there being some penetrating oils that were said to bring out the natural beauty of woods. My deck is uncovered on the South side of my house and gets full exposure to the elements with heavy foot traffic running down the middle. Any advice on how to restore the cedar to its natural colors would be greatly appeciated.