I have two volcanoes I've hiked to my credit.
1) Mt. Pinatubo- actually hiked this one to its summit, for lack of a better phrase. The summit is actually a lake in which you can swim. I guess as far as volcanoes go, this may have been an easier one, but it was not without its challenges. One being the riff-raff that's sometimes waiting for foreigners. Many of foreigner were harmed trying to hike this volcano by the locals and at one time they suggested against it or with a reliable tour guide.
Mt. Arayat- Located on the other side of Angeles City, I only went to the foothill of this extinct behemoth. Much larger and much more dangerous a hike than Pinatubo and I can say with absolute certainty I will never hike to the summit. Mostly because I do not consider myself a hiker and never will be. By the way I encountered the NPA at this mountains foothill, my jeepney driver was scared shitless, I remained calm and actually talked with a couple of them while my jeepney driver was trying desperately to hide any visible money.
Here's a few pics-
Pinatubo-

Mt. Arayat-
