Well, wedding close to sea, I presume. The taped lower right-hand corner tells me this photo has seen a lot of love over the years. Very cute!
Dad was a Lieutenant Colonel in the Army Corps of Engineers. Mom & Dad got married at Ft. Lewis Washington after the war, and his men decorated this earth mover as their "carriage" from the chapel to the reception. This is a colorized black and white, and I especially like how they drew in a rainbow in the background.