The science of NIRS hinges on some of the fundamental principles of pulse oximetry as they relate to the transmission of light through living tissues and the absorption of light by tissue chromophores (naturally occurring compounds that absorb light [e.
U.S. Geological Survey Geographic Names Information System: El Nido, Merced County, California; U.S. Geological Survey Geographic Names Information System: El Nido, Merced County, California. El Nido is a census-designated place in Merced County, California. It is located 15 miles (24 km) west-southwest of Le Grand, at an elevation of 141 feet (43 m), and a population of 160 The population was 330 at the 2010 census. 1 History.
Possible but too amazing-race-ish... Keep in mind that El Nido is at least 5 hours (by van; or up to 7 hours by bus) from Puerto Princesa, and Sabang/Underground River is about an hour from Puerto Princesa, not counting the wait time for the queue for the underground river tour...