We went to Cape Cod every summer when I was young, and it was the highlight of the year. My family and my Aunt’s family met in a vacation rental and lazed away the week before the 4th of July. We went to beaches on the bay side and on the Atlantic side, swam in kettle ponds, built sandcastles, strolled through Provincetown, went to the drive-in movies, rode bikes, read books, dyed our hair, never wore the sunscreen we swore to our parents we put on, took showers in the outdoor shower, and always put on a play based...