Rivers & Lakes

9 min read

Sulu Trench: Geology, Seismicity and Subduction Dynamics

Geological profile of the Sulu Trench, an oceanic trench in the Pacific Ocean west of Mindanao and Sulu.

10 min read

Leyte Gulf: Geography, Ecology and Historical Significance

Leyte Gulf is a body of water in the Eastern Visayas, known for the Battle of Leyte Gulf and rich marine biodiversity.

8 min read

USS Resourceful (AFDM-5): History and Operations of a Floating Dry Dock in the Philippines

History of USS Resourceful (AFDM-5), a US Navy floating dry dock built in 1943 and operated in Subic Bay until 2021.

11 min read

Silot Lagoon: Geography, Ecology and Property Disputes in Liloan, Cebu

Silot Lagoon in Liloan, Cebu is a shallow mangrove lagoon connected to the Camotes Sea. Known for its whirlpools and a long-standing propert...

11 min read

North Port Passenger Terminal: Infrastructure and Operations

Overview of the North Port Passenger Terminal in Manila, its capacity, facilities, and history since opening in 2013.

10 min read

Philippine Sea: Geography, Biodiversity and Strategic History

The Philippine Sea is the world's largest marginal sea, a biodiversity hotspot in the Coral Triangle, and a historic naval battleground.

14 min read

Malampaya Sound: Geography, Ecology and Marine Protected Area Status

Malampaya Sound is a protected inlet in Palawan, Philippines, known for its diverse ecosystems and as the only habitat of Irrawaddy dolphins...

13 min read

South Chamorro Seamount: Geology, Ecology and Research History

South Chamorro Seamount is a large serpentinite mud volcano in the Izu–Bonin–Mariana Arc, known for high-temperature flows and unique deep-s...

5 min read

Benham Bank: Geology, Biodiversity and Marine Research in the Philippine Sea

Benham Bank is a shallow ocean bank in the Philippine Sea, part of the Benham Rise. It features unique mesophotic coral reefs and hosts over...

13 min read

Naujan Lake: Hydrology, Ecology and National Park Heritage

Naujan Lake is the fifth largest lake in the Philippines, located in Oriental Mindoro. It is the centerpiece of the Naujan Lake National Par...

11 min read

La Mesa Dam: Infrastructure, History and Water Supply for Metro Manila

La Mesa Dam in Quezon City is a key component of the Angat-Ipo-La Mesa water system, supplying Metro Manila since 1929.

9 min read

Moro Gulf: Geography, Seismic Activity and Maritime Economy

The Moro Gulf is the largest gulf in the Philippines, located off Mindanao. It is a major tuna fishing ground and site of the 1976 earthquak...

12 min read

Liguasan Marsh: Ecology, Hydrology and Conservation in South-Central Mindanao

Liguasan Marsh is the largest swamp in south-central Mindanao, spanning 2200 km2 across four provinces. It supports 92 bird species and 1120...

12 min read

Agusan Marsh: Ecology, Conservation and the World's Largest Captive Crocodile

Agusan Marsh is a vital Philippine wetland in Mindanao, home to the Manobo people and the record-holding crocodile Lolong.

15 min read

Cagayan de Oro River: Hydrology, Tourism and Fishery in Northern Mindanao

The Cagayan de Oro River flows from Bukidnon to Macajalar Bay, serving as a key boundary and hub for whitewater rafting and artisanal fisher...

11 min read

Candaba Swamp: Hydrology, Ecology and Agricultural Use

Candaba Swamp is a 500 km² wetland in Pampanga and Bulacan that serves as a natural flood basin and seasonal farmland.

6 min read

Magdalena River: Hydrology, Ecology and History of Colombia's Main Waterway

The Magdalena River is Colombia's main river, flowing 1,528 km to the Caribbean. This article covers its ecology, history, and recent touris...

10 min read

Pulangi IV Dam: Hydroelectric Infrastructure and Siltation Challenges in Bukidnon

Overview of the Pulangi IV Dam in Bukidnon, its 255 MW capacity, and ongoing siltation management.

14 min read

Aliwagwag Falls: Geography, Biodiversity and Protected Landscape Status

Aliwagwag Falls is the highest waterfall in the Philippines, located within the Aliwagwag Protected Landscape in Davao Oriental, Mindanao.

12 min read

Mainit Hot Springs Protected Landscape: Geography, Biodiversity and Conservation in Davao de Oro

Protected landscape in Nabunturan, Davao de Oro preserving sulfuric hot springs, dipterocarp forests and Manat River headwaters.