The Backbone of Palawan
Puerto Princesa City, the Philippines
March 24 – 26, 2013
Ten percent of the Philippines lay on hard yet soluble bedrock. For millions of years, water, aided by tropical heat, had carved out a large swathe of Visayas and the entire length of Palawan into a karst landscape of sawtooth peaks, whitewashed cliffs, and rocky mountains undermined by a network of caves.
