Maria Christna Falls
Maria Cristina Falls is a waterfall of the Agus River on the island of Mindanao. It is sometimes called the "twin falls" as the flow is separated by a rock at the brink of the waterfall.[1] It is a landmark of Iligan City, nicknamed the City of Majestic Waterfalls, because of the presence of more than 20 waterfalls in the city.[2] It is located 9.3 kilometers away southwest of the city proper at the boundaries of Barangays Maria Cristina, Ditucalan, and Buru-un.[2] Well known for its natural beauty and grandeur, the 320 - feet (98 meters) high waterfall[3] is also the primary source of electric power for the city's industries, being harnessed by the Agus VI Hydroelectric Plant.[4]
Taal Volcano
Taal Volcano is a complex volcano located on the island of Luzon in the Philippines.[1] It is the second most active volcano in the Philippines with 33 historical eruptions. All of these eruptions are concentrated on Volcano Island, an island near the middle of Taal Lake. The lake partially fills Taal Caldera, which was formed by prehistoric eruptions between 140,000 and 5,380 BP.[2] Viewed from Tagaytay Ridge, Taal Volcano and Lake presents one of the most picturesque and attractive views in the Philippines.[3] It is located about 50 km (31 mi) south of the capital of the country, the city of Manila. The volcano had several violent eruptions in the past causing loss of life in the island and the populated areas surrounding the lake, with the death toll estimated at around 5,000 to 6,000. Because of its proximity to populated areas and its eruptive history, the volcano was designated a Decade Volcano, worthy of close study to prevent future natural disasters. All volcanoes of the Philippines are part of the Pacific Ring of Fire.
Underground River
The Puerto Princesa Subterranean River National Park is a protected area of the Philippines located about 80 kilometres (50 mi) north of the city centre of Puerto Princesa, Palawan. The river is also called Puerto Princesa Underground River. The national park is located in the Saint Paul Mountain Range on the western coast of the island. It is bordered by St. Paul Bay to the north and the Babuyan River to the east. The City Government of Puerto Princesa has managed the National Park since 1992. The entrance to the subterranean river is a short hike or boat ride from the town Sabang. In 2010, a group of environmentalists and geologists discovered that the underground river has a second floor, which means that there are small waterfalls inside the cave. They also found a cave dome measuring 300 m (980 ft) above the underground river, rock formations, large bats, a deep water hole in the river, more river channels, another deep cave, as well as marine creatures and more. Deeper areas of the underground river are almost impossible to explore due to oxygen deprivation.[clarification needed] On November 11, 2011, Puerto Princesa Underground River was provisionally chosen as one of the New7Wonders of Nature. This selection was officially confirmed on January 28, 2012.[