A man-made pools of fresh, mineral-rich water is good for swimming
© Alvin Starkman, 2012
Source article: Hierve el Agua: Bubbling springs and petrified waterfalls in Oaxaca, Mexico
A man-made pools of fresh, mineral-rich water is good for swimming
© Alvin Starkman, 2012
Source article: Hierve el Agua: Bubbling springs and petrified waterfalls in Oaxaca, Mexico