▁sh aft ▁in ▁the ▁bottom ▁corner ▁of ▁the ▁chamber ▁soon ▁leads ▁into ▁a ▁stream ▁passage ▁some ▁ ▁long ▁which ▁ends ▁at ▁a ▁ ▁water fall ▁into ▁the ▁main ▁Lost ▁Joh ns ' ▁Master ▁C ave ▁about ▁ ▁from ▁its ▁terminal ▁sum p . ▁ ▁A ▁ ▁clim b ▁up ▁the ▁water fall ▁in ▁the ▁Main ▁Chamber ▁enters ▁East ▁Pass age , ▁a ▁well ▁decor ated ▁ph re atic ▁passage ▁with ▁a ▁mis fit ▁stream . ▁It ▁passes ▁under ▁an ▁a ven , ▁and ▁eventually ▁low ers ▁to ▁a ▁s ilt ed ▁craw l ▁after ▁. ▁The ▁a ven ▁has ▁been ▁clim bed ▁for ▁ ▁to ▁a ▁ch oked ▁in let . ▁The ▁stream ▁enters ▁East ▁Pass age ▁from ▁a ▁low ▁craw l ▁after ▁, ▁called ▁Dol ph in ▁Pass age . ▁This ▁gets ▁larger , ▁and ▁passes ▁a ▁small ▁passage ▁heading ▁towards ▁E ye hol es , ▁a ▁ch oked ▁p oth ole ▁located ▁some ▁ 5 0 ▁metres ▁north - east ▁of ▁the ▁entrance ▁to ▁Death ' s ▁Head ▁H ole , ▁before ▁reaching ▁a ▁very ▁wet ▁section . ▁This ▁has ▁been ▁forced ▁through ▁to ▁the ▁bottom ▁of ▁Long ▁Drop ▁C ave , ▁which ▁is ▁the ▁source ▁of ▁the ▁water . ▁ ▁Big ▁Me anie ▁( also ▁called ▁Haw th orn ▁Pot ▁and ▁N ost ril ▁Pot ) ▁is ▁another ▁entrance ▁into ▁the ▁system ▁situated ▁about ▁ ▁due ▁west ▁of ▁Death ' s ▁Head ▁H ole , ▁in ▁a ▁sh ake hole ▁by ▁a ▁k ink ▁in ▁the ▁wall . ▁A ▁tight