Taal volcano had at least 33 recorded eruptions over the last 400 years.
Some of these eruptions came from different craters like Binintiang Malaki (1707, 1709, 1715) and Binintiang Munti (1709), while others were underwater like those off Calauit (1716) and off Pira-Piraso (1731).
Most of the eruptions, though, came from the Main Crater Lake. The most devasting were the ones in 1749 and 1911 where 1, 335 people died. The eruption affected places all around Taal lake. Volcanic ashes reached even as far as Manila.
Mount Tabaro was the last active crater with 8 eruptions in 1965, 1966, 1967, 1968, 1969, 1970, 1976 and 1977. The 1965 eruption killed 200 people, leaving a 25-cm thick layer of ashes on the whole volcano island and some parts around Taal lake. The 1969 eruption was the last one releasing some lava and the 1977 eruption was the most recent eruption of Taal Volcano.
Taal Volcano is still a very active volcano and is constantly being monitored by the Philippine Institute of Volcanology and Seismology.
Having a tour on Taal volcano is only possible when the alert level is below 2 (Taal volcano was under alert 2 on June/July 2010 and April/June 2011) Since July 5th the alert level is at 1 which means that a trek is allowed.