
A daring cave diver has revealed why he decided to pack up his things and leave after discovering something eerie on the walls.
Identical twins James and Edward - known collectively as ActionAdventureTwins on YouTube - are famed for braving some of America’s most risky caves.
In one of their viral videos from June 2023, one of the twins (it's hard to tell which one) explored a cave in an unknown location.
As soon as he got in, he realised just how unprepared he was after stumbling upon what he thought was animal faeces on the wall.
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Without proper equipment, gloves and knee pads, the content creator started to regret his decision.
"I am so ill-prepared, I got no knee pads or gloves, short sleeve shirt, what am I doing?" he said.

After a few minutes, you'll realise why the caption was: "It's not worth it."
All of a sudden, the brother encounters what looks like 'blood' on the rocks.
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"I think that's blood," he said.
"Oh my God guys, I think there's actually blood up there."
Not long after, the cave diver got out of there as quickly as possible, just to be safe.
Fans of the YouTuber were surprised by his lack of preparation.
Over in the comments, one person wrote: "'Is that blood?' has to be pretty high on the list of questions you don't want to be asking yourself in the middle of a cave."
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A second person penned: "No caving gear, no safety gear and all alone deep in a cave... This is a recipe for a disaster in the making with this guy..."
A third warned: "This is a loose cave; highly dangerous for all professionals. You already know this information; try not to listen to the evil voices that told you to explore alone.
"Every time you mentioned seeing more bear tracks, I can’t believe you kept going in further. Omg not safe, especially all alone.
"The blood freaked me out and then you mentioned that whatever was out hunting would be heading back in. Holy cow."
Meanwhile, one eagle-eyed viewer thought they spotted someone else's belongings in the clip.
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They wrote: "That stuff on the ground at 15:42 looks very much like a smartphone on the left (partially obscured by rocks, screen dirty if facing up; might be upside-down) and on the right (the blue thing) what might be some sort of bag (perhaps for the phone; if it's a bag, it seems damaged), and left of the smartphone-looking object there's what looks like two AA or AAA batteries (next to a rock that's about the same length as the phone."
Think he made the right decision.
Topics: YouTube, Extreme Sports