Taal Volcano
The Taal Volcano on the island of Luzon is one of the most active in the country. It is in the center of Taal Lake, so just getting to the crater is part of the adventure. The city of Talisay, where you will catch a boat to get to the crater, is less than an hour's drive from Manila. You will catch a boat to go across Taal Lake then hike to the rim of the crater.
There are a number of trails around the volcano. The Spanish Trail goes to the top of the volcano and has some of the most impressive views. The less popular Kenney Trail is a good option if you want to avoid potential crowds or if you think you might want to rest along the way. This trail has quite a few shade trees.
Due to the logistics involved in visiting Taal Volcano, you might want to consider an organized day-tour.