Cave marked (4) on Planc's sketch. 136
Chas Butcher
After the excesses of the past couple of days we thought we'd better get underground. We rigged a traverse line from the entrance down to the top of the first pitch, went down and rigged a couple of pitches down to where we could hear the stream. Unfortunately we could only hear it because the way on was through a 4" slot.
Mike found a short crawl to an inlet - active with a small dribble, much like the 115 inlets in dry weather - and below a couple of short, semi-free-climbable pitches we came to a decent drop, obviously right over the stream. It sounded enormous ! We bolted & Mike descended. The streamway is in a rift, and soon disappeared into boulders - foiled again ! The only lead now is a biggish pitch which is nasty & loose but may bring us back below the choke in the stream. 
4 hrs Chas.