Until I saw your post I'd never heard it mentioned either.

Have you already seen this link :-
http://www.polilloquezon.com/

This is a pretty interesting and captivating blog:-
http://traveltrilogy.blogspot.co.uk/...lo-island.html

Could be almost as challenging and at the same time as rewarding as a trip to Itbayat Island (Batanes).

Got me thinking now...

Just out of curiosity, how did you hear about it?