It was an eerie sight.
In fact, the temperature is a sweltering 112F, with a humidity of 90-100 per cent.
The cavers had to wear protective suits and carry backpacks of ice-cooled air.
It was an eerie sight.
In fact, the temperature is a sweltering 112F, with a humidity of 90-100 per cent.
The cavers had to wear protective suits and carry backpacks of ice-cooled air.
