RT @ANCALERTS: Palawan residents celebrate Underground River’s entry to Wonders of Nature list https://web.archive.org/web/20111113035220/http://www.abs-cbnnews.com/nation/regions/11/12/11/underground-rivers-entry-wonders-nature-list-hailed
RT @ANCALERTS: Palawan residents celebrate Underground River’s entry to Wonders of Nature list https://web.archive.org/web/20111113035220/http://www.abs-cbnnews.com/nation/regions/11/12/11/underground-rivers-entry-wonders-nature-list-hailed