Hi
Just watched a DVD about the wookey hole cave exploration filmed by Gavin Newman.
If you fancy seeing a lone diver filming himself in a squeeze at 70m whilst trying to dig out the gravel bottom with his face in the dirt whilst trying to get to the 'end' of wookey hole then its definitely worth getting hold of a copy
It also has an interesting bonus material film about Rob Parkers 1985 exploration. Also worth a look just to see him trying to negotiate a ladder through a squeeze
http://www.wookeyfilm.com/
Hats off to the divers in wellies
cheers