This is the primary mapping of the Abu Helal cave system that we started exploring since 5 days with Sebastien Kister, Mercy Hehuat and Damiano Flisi. There is a entrance at 27 meters depth, its a small entrance where you enter vertically, the cave system is also very narrow, around 2 meters wide! and is extending on probably 1 km length until it opens again and becomes a Canyon. Inside the cave you have a thermocline at 36 meters, the average depth of the explored part of the cave system is between 35-41 meters. Once inside there is no way to come out except at the sections pointed with an exit (B,C,D). Some parts are completely dark for quite a while so you need to have a good lamp with 2 back-up lights, coming back from where you entered will not be as nice as if you do it in a one way direction, there is a lot of silt and the visibility will be reduced to a maximum of 1 meter. This is not a dive to be done on single tank! its a serious and dangerous penetration and you need to do that on trimix in order to have a clear head, if you dont know the place you better lay a line inside the cave or ask us for advice. The right training is also needed for this type of dives!
Thanks to Sebastien Kister, Mercy Hehuat, Damiano Filsi and Tom Steiner for contributing to the exploration of this cave.
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