https://www.cia.gov/library/publications/the-world-factbook/geos/rp.html
http://www.corregidorisland.com
www.clarksubicmarketing.com/sports_leisure/subic_bay_extreme_adventure.htm
http://www.ourawesomeplanet.com/awesome/2008/02/mt-pinatubo-hik.html
To get to the websites that I have linked, just click on the website URL.