Fascinating

 
A cave in Northern Italy has footprints left in the high-clay mud by a family on an outing... 14,000 years ago!

https://arstechnica.com/science/2019/05/14000-year-old-footprints-record-an-underground-stone-age-family-outing/?utm_source=join1440&utm_medium=email&utm_placement=etcetera 

This is making me remember some of the adventures my Dad led my Mother, sister and me on during various visits to parks. (We even went into Mammoth Cave and at least one other park's cave.)