"In April 2016, Construction Workers In Tomares, A Suburb Of Seville, Spain, Made A Serendipitous Discovery While Installing Electricity In El Zaudín Public Park"
The Veryovkina Cave is a little bit deeper. Just a few metres: 2223metres.
But... Indeed... both caves belong to the same Arabika Massif. So, actually they are kind of neighbours.
#40 I remember when that guy was found. Amazing story.
Another great list, Iz. Thanks. Keep 'em coming.