Yes you are right it is the Gouron I spoke to Gary last night and the line we left in after the June trip was useful to them (only down the slope) belayed to a tree (nice 4mm line :-) ) The entrance is at 8M in the river bed and very poor vis once into the cave the sump drops quickly to 56M then slowly back to air. It is 420M long the vis was crystal for the dive. We only went to look as a fall back after we were told we could not dive the Dessoubre and we should leave. Then we went to option two the Pont Diable this was discounted as the sump edge had been used by a number of people as a latrine !!!!!
Not steps big blocks holding up the river bank.
Andrew.