Batangas in the context of "Taal Lake"

Taal Volcano (IPA: [taʔal]; Tagalog: Bulkang Taal) is a large caldera filled by Taal Lake in the Philippines. Located in the province of Batangas about 50 kilometers (31 mi) south of Manila, the volcano is the second most active volcano in the country with 39 recorded historical eruptions, all of which were concentrated on Volcano Island, near the middle of Taal Lake. The caldera was formed by prehistoric eruptions between <670,000 and <6,000 years ago. The cones Batulao, Maculod, Sugnay are remnants of the early pre caldera Taal system with Batulao being the earliest known cone.

Taal Volcano has had several violent eruptions in the past, causing deaths on the island and the populated areas surrounding the lake, with an overall death toll of about 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. The site was declared National Geological Monument in 1998 and a national park in 2018.

Calabarzon (officially stylized in all caps; English: /ˌkɑːləbɑːrˈzɒn/; Tagalog: [kalɐbaɾˈsɔn]), sometimes referred to as Southern Tagalog (Tagalog: Timog Katagalugan) and designated as Region IV‑A, is an administrative region in the Philippines. It is situated southeast of Metro Manila and is bordered by Manila Bay and the South China Sea to the west, Lamon Bay and the Bicol Region to the east, Tayabas Bay and the Sibuyan Sea to the south, and Central Luzon to the north. Comprising five provinces—Cavite, Laguna, Batangas, Rizal, and Quezon (hence the acronym)—and one highly urbanized city, Lucena, it is the most populous region in the Philippines, according to the 2020 census, with over 16.1 million inhabitants. It is also the country's second most densely populated region, after the National Capital Region. Calamba in Laguna serves as the regional center, while Antipolo in Rizal is the most populous city in the region.

Before its creation as a separate region, Calabarzon, along with the Mimaropa region, the province of Aurora, and parts of Metro Manila, comprised the historical region known as Southern Tagalog until they were separated in 2002 through Executive Order No. 103.

Occidental Mindoro (Tagalog: Kanlurang Mindoro), officially the Province of Occidental Mindoro (Tagalog: Lalawigan ng Kanlurang Mindoro or Lalawigan ng Occidental Mindoro), is a province in the Philippines located in the Mimaropa region. The province occupies the western half of the island of Mindoro. Its capital is Mamburao, but the most populous municipality is San Jose. Sablayan is its largest municipality in terms of area, occupying almost half of the entire province. As of 2020, Occidental Mindoro has 525,354 inhabitants.

The province is bordered on the east by the province of Oriental Mindoro, and on the south by the Mindoro Strait. The South China Sea is to the west of the province and Palawan is located to the southwest, across the Mindoro Strait. Batangas is to the north, separated by the Verde Island Passage, a protected marine area and the center of the world's marine biodiversity.

Oriental Mindoro (Tagalog: Silangang Mindoro), officially the Province of Oriental Mindoro (Tagalog: Lalawigan ng Silangang Mindoro (Oriental Mindoro)), is a province in the Philippines located on the island of Mindoro under Mimaropa region in Luzon, about 140 kilometres (87 mi) southwest of Manila. The province is bordered by the Verde Island Passage and the rest of Batangas to the north, by Marinduque, Maestre de Campo (or known as Sibale but official name is Concepcion) Island, Tablas Strait and the rest of Romblon to the east, by Semirara and the rest of Caluya Islands, Antique to the south, and by Occidental Mindoro to the west. Its provincial capital Calapan, the only city in the island, is the most-populous in the province, and Mimaropa's regional center.

Oriental Mindoro is touted as the country's emerging eco-tourism destination. In 2005, the Philippines was found to be the center of marine fish biodiversity and the home of the most diverse marine ecosystem in the world, by American biologists Kent Carpenter and Victor Springer. Most of the endemic species in the Philippines are found in the Verde Island Passage between Mindoro island and the main island of Luzon. The passage houses 2,983 individual species of algae, corals, crustaceans, mollusks, fishes, marine reptiles, and marine mammals, based on a study conducted by Carpenter and Springer in 2005.

Quezon, officially the Province of Quezon (Tagalog: Lalawigan ng Quezon) and historically known as Tayabas, is a province in the Philippines located in the Calabarzon region on Luzon. Lucena, a highly urbanized city governed separately from the province, serves as the provincial capital and its most populous city. The name of the province came from Manuel L. Quezon, the president of the Philippines from 1935 to 1944 and a native of Baler, which was formerly a part of the province. The province was known as Kalilayan upon its creation in 1591, renamed as Tayabas by the 18th century, before settling on its current name in 1946. To distinguish the province from Quezon City, it is also known as Quezon Province, a variation of the province's official name.

One of the largest provinces in the country, Quezon is situated on the southeastern portion of Luzon, with the majority of its territory lying on an isthmus that connects the Bicol Peninsula to the rest of Luzon. It also includes the Polillo Islands in the eastern part of the province. It is bordered by the provinces of Aurora and Bulacan to the north, Rizal, Laguna, and Batangas to the west, and Camarines Norte and Camarines Sur to the southeast. It also shares maritime borders with Marinduque and Masbate.

Mount Batulao is an inactive stratovolcano in the Calabarzon region of the Philippines, located in northwest Batangas province along its border with Cavite. It is a flank dissected andesitic stratovolcano of Taal at the northwestern rim of the Taal Caldera which began to form in the late Pliocene period, about 3.4 million years ago. The mountain is a prominent landmark of jagged peaks, rolling to rugged ridges and deep gorges situated just west of the hill station of Tagaytay at the southwestern end of the Tagaytay Ridge. It is well known for its scenery, as well as its retreat centers and resorts located just 85 kilometres (53 mi) south of Manila.