Me and Mandi went with the BMW club. Some of the chaps there organised everything from where we'd stay to coach trips and ride outs to different venues, take your pic type of thing and all the groups are busy. We did beaches, bunkers bridges and grave yards/memorials, think we had 4 days and there's much more to see. I'm sure you'd get about quicker by yourself but I'm confident you'll be missing things with only two days let alone one.
We always talked about going back for the 75 anniversary, that and many other things that didn't happen. Think it was 2009 when we went.