Volcano Trekking · Albay Province, BicolMayon Volcano trekADVANCEDRisk: HIGHPHP Guided day trek ~1,500–…Famous for its near-perfect symmetrical cone, one of the most active volcanoes in the Philippines with a history of sudden eruptions that have forced mass evacuations within living memory — treks to the mid-slopes are permitted only when the alert level allows it.View details