As one’s children grow up and out, as friends and boyfriends become a center of gravity, as one’s own career demands make travel difficult, there comes a point — often unknown till it’s past — when the family vacation is over.

This does not mean it will never come again (she tells herself optimistically). But if it comes again it will be in a different form, often atomized (two of us visiting a third) and not all of us together again until people are older and more settled.

So for now, for us, the family vacation season is over and the just-for-two vacation season hasn’t yet begun. It makes me sad to admit this, but I can’t complain. We’ve had a good run. Together we’ve seen much of this country, have sampled Canada and even once ventured across the Atlantic. The glories of the Grand Canyon, Big Sur, Yosemite (where Claire turned 16) and the Maine Coast (where Claire turned 17 — ah, the inconvenience and the privilege of the summer birthday) were all ours to share.

This summer two of us went to Montana, another went to Africa and one is leaving today for the beach. We’ve made quick trips to Kentucky and Indiana. But all together, well, the last trip we all made together was going out to dinner at Reston Town Center. We sat on little chairs and ate our food off short tables. We laughed and talked about the “cougar bar” across the street. It was a good vacation.