"In 2009, Archaeologists Unearthed A Striking Gladiator Helmet From Pompeii’s “Gladiators’ Barracks” (Regio V), Offering A Captivating Glimpse Into Ancient Roman Combat"
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.