Acidic waters in a cave can be very dangerous to spelunkers. The acid that the water contains can burn the skin severely.
I suppose that the acidic aquatic environments (including ocean waters) are more common and dangerous.
Dangerous Waters - 2012 was released on: USA: 2012
Dangerous Waters - 1919 was released on: USA: 21 September 1919
Dangerous Waters - 1923 was released on: USA: 6 January 1923
guna cave
Dangerous Waters - 1994 was released on: USA: 18 October 1994
Dangerous Waters - 1999 TV is rated/received certificates of: Argentina:13
very dangerous
haphazrd waters
Yes, it is.
Body of Evidence - 2002 Dangerous Waters was released on: USA: 21 July 2005
Dangerous Waters - 2012 1-1 was released on: USA: 4 October 2012