the stairs do exist, and the are in a usable condition, at least as log as it is dry. Was there on the 13 of March 26. Was a little hard to find the exact location on the ground. But the representation on the map is very accurat. (actually i found the stairs only with the help of the map.)
The marker - as in the discusion above is mentent - is on the wrong side of the bay. I place a marker on the right position and refer to this discusion