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Hi Andrei, good to hear you learned something new through our video tutorials…the grada hitch and the self-pulley-system you just use if you´re selfrescuing out of a crevasse and just for the very last part of the procedure when it comes to surpass the edge of the crevasse. Almost always you will find your rope cut into the snow lip of the crevasse enabling you to pass with the normal double-prusik-methode. Then and just then you use the garda-hitch and the self-pulley system! For jugging up the free rope the method with the two prusiks is much more comfortable. Best, your ORTOVOX team

Dear George Austers! You always should be roped, whenever you’re entering a snow covered glacier. If you can not see the crevasses because of the snow, there always is a decent danger to fall into a crevasse. Crevasses can be quite deep (10 to 100m), so an unroped fall into a crevasse can cause your death or at least severe injuries. If you have been lucky and have survived unharmed, you´re still in a very bad position. You might be stuck 20m deep inside a crevasse, surrounded by vertical ice walls. Some superhuman might be able to climb these walls up without a rope and rescue themselves, but 99,9% are not. So hopefully you have a partner or some other mountaineers with an rope outside the crevasse, who can provide you rescue. Anyway falling into a crevasse without a rope is not an option! If you really want to know, what it takes to survive this, we highly recommend you Joe Simpson's famous book “Touching the void”. Stay healthy, stay safe, your ORTOVOX team