The British and Australian governments have issued warning against travelling to all parts of Cebu Province, Mindanao and Sulu archipelago
http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1007029390590&a=KCountryAdvice&aid=1013618386343
It's probably worth checking your own government foreign affairs website. If you are Irish don't bother, they seem unaware the Philippines exists.
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