Here's the short preamble:
I'm in awe of the 3-D image of Endurance Crater, having viewed it with my trusty red-green 3-D visor,
but what really excites me is the possibility that the huge overhang [and my 3-D visor confirms it is an OVERHANG] the otherside of the crater has a CAVE/CAVERN at the lower-portion.
I confess my obsession with finding proof of the existence of any
caves/ caverns [or lava-tubes] on another world, besides Earth.

Which of you geologists and geophysicists can say with any degree of certainty that a CAVE/CAVERN has been verified to exist on another world besides Earth?...Can you back up that statement with a link?
If you say, no, I'll put you to a bet.

I'll bet you a complete steak-dinner at "Ponderosa Steakhouse" [or equivalent in cash; either American, Canadian, or Australian] that the huge overhang below the lip of Endurance Crater has a CAVE/CAVERN on the bottom of that
geological protrusion.....What do you say?

We've seen "tiny" orifices/holes/gaps in the bedrock over at Eagle Crater, and you geologists call such gaps
in the strata of that bedrock "VUGS".

Well then?...That CAVE/CAVERN in the bottom of that overhang on the otherside of Endurance Crater must be
the "Mother of all Vugs". My view!

Jacob

"The universe is not stranger than you imagined, it is stranger than you can imagine."