There are so many hiking trails in the Philippines. You can find them all over the country. Up north, it is nice to take a hike along the ranges in Ifugao and Mountain Province. It is a favorite destination among backpackers.
When you go hiking, be prepared to some health hazards like sunburn, heatstroke and exposure to dust and other air pollutants. To prevent any health problem you have to bring along with you sunblock, water supply that will quench your thirst, and at the end of the day you may need the best acne solution too. In all your hiking adventures, keep your safety in mind all the time.