Hey i know where it is i'm a wood boy right let me begin hamstead hill coming from city centre turn left on to friary rd then right on to grestone ave (my old road) past grestone school road turns changes to craythorne ave down to the end you will come to hamstead hall school round the bend before you get to acfold shops it's first left (can't remember the name) left again then the woods are on your right take path into the woods and the cave is on the left bank next to the river (get some pictures up dudes) last time i looked cave was filled in kids kept making fires in the entrance good luck bob the wood boy