Mauna Kea
Mauna Kea ( or , ) is a dormant volcano on the island of Hawaii. Its peak is above sea level, making it the highest point in the state of Hawaii. Most of the mountain is under water, and when measured from its oceanic base, Mauna Kea is the tallest mountain in the world measuring over . Mauna Kea is about a million years old, and has thus passed the most active shield stage of life hundreds of thousands of years ago. In its current post-shield state, its lava is more viscous, resulting in a steeper profile. Late volcanism has also given it a much rougher appearance than its neighboring volcanoes due to construction of cinder cones, decentralization of its rift zones, glaciation on its peak, and weathering by the prevailing trade winds. Mauna Kea last erupted 6,000 to 4,000 years ago and is now considered dormant. The peak is only about higher than its more massive neighbor, Mauna Loa.
Mount Banahaw
The andesitic Banahaw volcano complex is composed of several mountains with Mount Banahaw, the largest with a maximum elevation of above mean sea level. The summit is topped by a and deep crater that is breached on the southern rim believed to have been caused by the 1730 eruption. Prior to 1730, a lake occupied the summit crater of Mount Banahaw. The resulting flood destroyed the town of Sariaya, Quezon located below the mountain.
Banahaw is a traditional pilgrimage site for locals, believed by many as a "Holy mountain", a spiritually-charged location. The mountain and its environs are considered sacred by local residents; the water from its sacred springs are deemed "holy water" for allegedly having beneficial qualities, issuing forth from locations called ""puestos"" or "holy sites". These sites are unique natural features composed not only of springs, but also caves, streams and boulders; with names with biblical allusions, and shrines erected in, on or around them. These locations were allegedly revealed to a man named Agripino Lontoc by the ""Santong Boses"" or the "Holy Voices", which also gave the names to these places way back during the Spanish Colonial Era. Another one of this mountain is the adjacent Mount Banahaw de Lucbán.