Like most people around the world, I am deeply concerned about the 13 people trapped in a cave in your country.
While all the efforts to assist them are extremely admirable, I was wondering if it would be possible for the cave divers who are visiting them regularly to take with them self-inflatable lilos, one for each person to sit and lie in (see attached picture).
I am not sure whether the water is running or stationary, but all 13 lilos could be strung together and then anchored securely somewhere on the ledge where they are currently sitting (in discomfort?).
This is just a shot in the dark, but worth pursuing, in my view, in the interest of making them more comfortable until their escape.
Prof IW Ferreira
Eastern Cape, South Africa