Bumbungan River

The Bumbungan River[2][3] (Tagalog: Ilog Bumbungan) is a river in the province of Laguna in the Philippines. It is commonly referred to as the Pagsanjan River because of the popularity of the municipality of Pagsanjan and Pagsanjan Falls, one of the province's tourist destinations. The municipality of Pagsanjan was named so because it is where the Balanac River, originating from Mount Banahaw, joins the Bumbungan. Its old name, Pinagsangahan, which literally means branching, was changed to Pagsanjan during the Spanish Colonial Era.[4]

Bumbungan River
Pagsanjan River
The river in Pagsanjan
Bumbungan River is located in Luzon
Bumbungan River
Bumbungan River mouth
Bumbungan River is located in Philippines
Bumbungan River
Bumbungan River (Philippines)
Native nameIlog Bumbungan (Tagalog)
Location
CountryPhilippines
RegionCalabarzon
ProvinceLaguna
City/municipality
Physical characteristics
Source 
 • locationSierra Madre mountains
 • elevationabout 430 metres (1,400 ft)
MouthAt the easternmost lobe of Laguna de Bay
 • location
Lumban, Laguna
 • coordinates
14.3319°N 121.4369°E / 14.3319; 121.4369
 • elevation
less than 2 m (6 ft 7 in) above sea level
Lengthover 35 km (22 mi)[1]
Basin size311.77 square kilometres (120.38 sq mi)
Basin features
ProgressionLaguna de Bay – Pasig River – Manila Bay – South China Sea
Tributaries 
 • left
  • Balanac River
  • Colocolo River
  • Cavinti River
 • rightLumot River

The Bumbungan River originates from the Sierra Madre mountains, in the highlands of Cavinti, flowing through Pagsanjan and ending in Lumban where it drains to Laguna de Bay, the largest lake in the country.[5][6][7] Bumbungan is one of 21 major tributaries of the lake and responsible for up to 35% of the water that flows into the lake. It is regularly monitored by the Laguna Lake Development Authority (LLDA) through one of its 15 river monitoring stations.[8]

Tourism
Shooting the rapids boat ride on the Bumbungan River

Located about 100 kilometres (62 mi) southeast of Manila, the Bumbungan River is a major tourist attraction within the Pagsanjan Gorge National Park with its rapids and waterfalls. For the people who live in Pagsanjan and Cavinti, the Bumbungan River is an important source of livelihood. In Pagsanjan, along the banks of Bumbungan are several hotels and resorts, some with views of the river, catering to visitors of the area.[9]

Pagsanjan Falls
Main article: Pagsanjan Falls

The waterfalls for which the Bumbungan river is famous is the Magdapio Falls, a section of the river in the town of Cavinti where the river drops about 300 feet (91 m). Because the original boat ride to reach the falls starts in Pagsanjan, it became known as the Pagsanjan Falls. This round trip boat ride consists of a 5.1-kilometre (3.2 mi)[1] trip to the falls in a Filipino banca (dugout canoe with newer ones made with fiberglass),[10] guided by a set of boatmen positioned at each end of the boat, as visitors are taken upriver passing through the narrow Pagsanjan Gorge, which gradually increase in elevation to over hundreds of feet high. The gorge is lined with trees, ferns, overhanging vines, rocks and boulders where varieties of fauna like birds, dragonflies, lizards and monkeys can be observed. The return trip, called Shooting the rapids, is a faster downriver ride as the skilled boatmen maneuvers the banca, avoiding rocks, as it glides through the rapids.

Cavinti Eco-Park

The Cavinti Eco-Park in Brgy. Tibatib, also known as Pueblo El Salvador Nature's Park and Picnic Grove, was opened by the government of Cavinti on February 24, 2007[11] to capitalize from the popularity of Pagsanjan Falls, which is located within its limits and generate income for its locals. The park offers an alternative for the visitors to the falls giving a shorter access to the falls from land and opening the upper Bumbungan River for hiking for interested individuals. Huts are rented out for picnickers and a viewing deck is also available for safely viewing Nakulo Falls, the uppermost waterfall of Pagsanjan Falls, and the top of the hidden second tier of Pagsanjan Falls.[12] A long stairway and some rappeling takes visitors down to the floor of the gorge where they can take the raft that go under the falls or do the Shooting the rapids boat ride to Pagsanjan with the boatmen from Cavinti.[13]

Bumbungan Eco-Park

Past the waterfalls and further upriver near the poblacion (town center) of Cavinti is a small park called the Bumbungan Eco-Park also in Brgy. Tibatib. The Bumbungan was dammed at this section where the top of the spillway also served as a wet bridge on the Lumban-Caliraya-Cavinti Road. After an adjacent bridge was constructed, the dam and adjacent land became the Eco-Park with huts for picnickers and bathroom facilities.[14][15]

Conservation

While the river itself appears quite clean to tourists, there is still considerable environmental concern. The LLDA notes that the Pagsanjan River Subwatershed is the second largest of the 21 sub basins that feed into Laguna de Bay, covering 311.77 square kilometres (120.38 sq mi),[16] and since it feeds so much water into the lake, it is "one of the biggest contributors of pollution loading".[8]

In the December 2005 Water Quality Status Report listed on the Laguna Lake Development Authority's site,[17] the Pagsanjan River was listed as Class D, with high total coliform concentration. According to the Department of Environment and Natural Resources Water Usage & Classification for Fresh Water, Class D Quality freshwater is suitable for agriculture, irrigation, livestock watering and industrial water supply class II. The report also indicated that this status had been maintained since the river was last monitored.

The LLDA's conservation efforts for the major tributaries and watersheds of Laguna de Bay have led to the creation of the Laguna de Bay River Basin Councils, of which the Pagsanjan-Lumban River Basin Management &. Development Fdn. is particularly tasked with conservation of the Pagsanjan.[18]

See also
Wikimedia Commons has media related to Bumbungan River.

References
  1. Measured using Google Earth
  2. "Tourism" Archived March 31, 2012, at the Wayback Machine. Pagsanjan Official Website. Retrieved on May 4, 2012.
  3. "Welcome" Archived April 2, 2012, at the Wayback Machine. Cavinti.com Retrieved on May 4, 2012.
  4. Zaide, Gregorio F. (1975) "Pagsanjan: In History and Legend". Pagsanjan.org. Retrieved on May 4, 2012.
  5. Army Map Service, U.S. Army Corps of Engineers (1955). "Manila Map". University of Texas in Austin Library. Retrieved on May 4, 2012.
  6. Army Map Service, U.S. Army Corps of Engineers (1953). "Daet Map". University of Texas in Austin Library. Retrieved on May 4, 2012.
  7. "Cavinti Map (Bumbungan River is the river north of Cavinti town)". Google Maps. Retrieved on May 4, 2012.
  8. Laguna Lake Development Authority (June 1995). "The Laguna de Bay Masterplan:Executive Summary" (PDF). Archived from the original (PDF) on April 19, 2012. Retrieved May 4, 2012.
  9. "Social Sector - Tourism" Archived April 1, 2012, at the Wayback Machine. Pagsanjan Official Website. Retrieved on May 8, 2012.
  10. "Pagsanjan Falls via Cavinti Laguna" Archived May 14, 2012, at the Wayback Machine. Lakwatswera de Primera. Retrieved on May 8, 2012.
  11. Jerome (April 8, 2008). "Nakulo+Magdapio (Pagsanjan) Falls - 6 of 222" Archived March 3, 2016, at the Wayback Machine. AMACU Mountaineering and Outdoors Club. Retrieved on May 12, 2012.
  12. andres1 (April 9, 2007). "Pagsanjan falls... upper deck?". Flickr.com. Retrieved on May 11, 2012.
  13. Jerome (April 8, 2008). "Nakulo+Magdapio (Pagsanjan) Falls" Archived April 26, 2011, at the Wayback Machine. AMACU Mountaineering and Outdoors Club. Retrieved on May 12, 2012.
  14. Fugaban, Sonyboy (January 26, 2012). "The Not-So-Famous Bumbungan Eco Park". Stories of My Wandering Feet (& Mind). Retrieved on May 12, 2012.
  15. cyndymc (June 25, 2009). "Bumbungan Eco-Park" Archived March 5, 2016, at the Wayback Machine. Virtual Tourist. Retrieved on May 12, 2012.
  16. Liongson, Leonardo; Tabios III, Guillermo Q.; Daño, Antonio (2005), "Laguna Lake's Tributary River Watersheds", in Lasco, Rodel D.; Espaldon, Ma. Victoria O. (eds.), Ecosystems and People: the Philippine Millennium Ecosystem Assessment (MA) Sub-global Assessment (PDF), Environmental Forestry Programme, College of Forestry and Natural Resources, University of the Philippines Los Baños, retrieved June 20, 2010
  17. "Monthly Water Quality Status Report December 2005" (Press release). Laguna Lake Development Authority. December 2005. Archived from the original on November 25, 2007. Retrieved September 30, 2007.
  18. Cariño, Jose III (2007), Integrated Water Resources Management:The Laguna de Bay Experience (PDF), retrieved September 30, 2007
  19. "Apocalypse Now film locations" Archived May 30, 2012, at the Wayback Machine. The Worldwide Guide to Movie Locations. Retrieved on May 12, 2012.

14°16′0.50″N 121°27′49.30″E

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