We just recently celebrated my parents 40th wedding anniversary and they didnt want anything just to celebrate it with close friends and family. After a few hours of celebrating we had organised a surprise harley ride for both of them which I didnt think they would like, but they had to as they were on the spot with friends and grandchildren. They are still laughing and talking about it. We as the children are too. Dont worry if the weather for this is not in your favor - - It rained on our date but it made it more fun as they had to get the wet weather gear on.