What is a "lap" in swimming and how could it be different from a "length"?
But my question is, what is a Lap? Is it really common for people to be swimming around a pool, not just up and down, the way you run a lap of a field?
Follow-up question, how could I possibly do more laps than lengths, which my watch is telling me? It says I just swam 16 lengths, but 17 laps. It would make more sense if it were 16 lengths and 4, or 8 laps.
I'm pretty baffled as to why this metric even exists.