Hauling your kit on local buses between the provinces is a sweaty mission you will regret by midday, grabbing your own wheels is the only sane call for exploring the rice terraces and hidden beaches. A quick online search brings up loads of rent a car in Philippines deals from the main hubs, and most places hand you the keys at Manila airport within ten minutes of landing, no messing about, just show your licence and go check the waves. You can look through the jeeps and saloons on offer right here
https://getrentacar.com/en-US/philippines .