Had some company this time. We returned throgh the duck and reached the boulder that stopped me Tuesday. Well it was indeed a chamber beyond that rock after the duck, after some stuggling I eventually moved it and after a few of its brothers were moved, we were through, into a chamber about 3x 3m and 1m high with 3 ways out. To the right it closed down after a few meters in a far too small passage. Straight on the water was bubbling out of a too small flooded rift. To the left was a crawl over boulders after 8m, this descended past twist and turns to where it got narrower but still passible about 20m on. At this point I stopped as I was concerned about reversing "are you sure you can reverse that, said Sam". So I did it was not too bad, it may continue it was not too tight to be impossible and I could here water ahead, the main downside was its heading back towards the main passage.