Her sister said she has daily goals, and tracks her hikes with (I'm assuming) a smart watch (or maybe an app on her phone). She said it's not like her to miss her daily goals. It's out of character for her to be "off" all day, and I think she means not connected to her activity app.
(I do this on my Apple watch, and do not want to miss a day of not fulfilling the goals because I will go back to zero. You track your activity by days, then months, then years. If she was in a long habit of tracking, seems more unlikely that she went off to taste wine.)
Brother in law and sis are sticking by the husband for now, but letting LE do their job.
Her husband has said she is a big drinker, but her sister does not agree, and said she occasionally will go out with the girls, or go wine-tasting, but she has 3 kids, so it's not often, and not every weekend. It might have happened once or twice, but not frequently.
Moo.