My family has reunited at Capon Springs and Farms in the West Virginia mountains since the 1960s. We do this the same week in late August. Many other families have come for years during that same week. The kids I grew up with now bring their kids.
For an academic, the end of August is the end of the year; September is when the year really begins.
Thus, for me, this week of vacation in the mountains, and in the cold, spring-fed pool, is the pivot of my whole annual cycle.