▁in ▁a ▁reality ▁television ▁show ▁air ing ▁on ▁the ▁History ▁channel ▁starting ▁in ▁ 2 0 1 4 . ▁ ▁Water ▁in ▁the ▁money ▁pit ▁ ▁According ▁to ▁an ▁account ▁written ▁in ▁ 1 8 6 2 , ▁after ▁the ▁On slow ▁Company ▁had ▁exc av ated ▁to ▁, ▁the ▁pit ▁flo oded ▁with ▁se aw ater ▁up ▁to ▁the ▁ ▁level ; ▁attempts ▁to ▁remove ▁the ▁water ▁were ▁un success ful . ▁Ex pl or ers ▁have ▁made ▁claims ▁about ▁an ▁elaborate ▁d rain age ▁system ▁extending ▁from ▁the ▁ocean ▁be aches ▁to ▁the ▁pit . ▁ ▁Later ▁tre asure ▁hun ters ▁claimed ▁that ▁co con ut ▁fib res ▁were ▁discovered ▁beneath ▁the ▁surface ▁of ▁a ▁beach , ▁Smith ' s ▁C ove , ▁in ▁ 1 8 5 1 . ▁This ▁led ▁to ▁the ▁theory ▁that ▁the ▁beach ▁had ▁been ▁converted ▁into ▁a ▁si phon , ▁feed ing ▁se aw ater ▁into ▁the ▁pit ▁through ▁a ▁man - made ▁tunnel . ▁A ▁sample ▁of ▁this ▁material ▁was ▁reported ly ▁sent ▁to ▁the ▁Smith son ian ▁Institution ▁during ▁the ▁early ▁ 2 0 th ▁century , ▁where ▁it ▁was ▁concluded ▁that ▁the ▁material ▁was ▁co con ut ▁fib re . ▁ ▁Although ▁one ▁expedition ▁claimed ▁to ▁have ▁found ▁a ▁flo od ▁tunnel ▁l ined ▁with ▁flat ▁stones ▁at ▁, ▁ge ologist ▁Robert ▁Dun field ▁wrote ▁that ▁he ▁carefully ▁exam ined ▁the ▁walls ▁of ▁the ▁re - ex c av ated ▁pit ▁and ▁was ▁unable ▁to ▁locate ▁any ▁evidence ▁of ▁a ▁tunnel .