Paintings of Caves???

I was on line, researching possible vacation destinations, and came across this sentence -

“If a hiker, take the tour down into the canyon to see thousands of year old Indian cave paintings.”

Okay, I’ll admit it.  I’m confused.

• Are these thousands of paintings completed around twelve months ago?
• Were these thousands of paintings created by Indian toddlers?
• Are Indian toddlers the subjects of thousands of paintings?
• Or, is the subject of the paintings Indian Caves?
• If so, what distinguishes an Indian Cave from any other hole in the ground?

Actually, I think I’ll go with option two.  I’ve heard dozens of times over the years about babies “painting” the wall beside their beds with poop.