Lake Naujan

Naujan Lake National Park
IUCN category IV (habitat/species management area)
Location in the Philippines
Location	Oriental Mindoro
Nearest city	Calapan City
Coordinates	13°10′N 121°20′E / 13.167°N 121.333°E / 13.167; 121.333Coordinates: 13°10′N 121°20′E / 13.167°N 121.333°E / 13.167; 121.333
Area	21,655 ha (83.61 sq mi)
Established	March 27, 1956
Governing body	Department of Environment and Natural Resources

Naujan Lake
Location	Oriental Mindoro
Type	Tectonic
Primary outflows	Butas River (also called Naujan River)
Basin countries	Philippines
Max. length	14 km (8.7 mi)
Max. width	7 km (4.3 mi)
Surface area	81.25 square kilometres (31.37 sq mi)
Max. depth	45 m (148 ft)
Surface elevation	20 m (66 ft)
Islands	3 unknown islands
Settlements	Calapan City, Oriental Mindoro

Naujan Lake is a freshwater lake in the Philippines located in the northeastern corner of the province of Oriental Mindoro on Mindoro Island. The lake is the fifth largest in the country and the main geographical feature of the Naujan Lake National Park.

The lake is bounded by the towns of Naujan to the north and northeast, Victoria to the west, Socorro to the south and southeast, and Pola to the east. The lake is also bounded by the Naujan Mountains to the north and east of the lake.

Mount Naujan, elevation 1,380 feet (420 m) and one of the inactive volcanoes of the country, is situated northeast of the geographic center of the lake. Several thermal springs and solfataras are reported to exist on the eastern border of the Naujan Lake.

The lakes watershed covers about 30,000 hectares (300 km²). The lake is fed by the Macatoc, Borbocolon, Malayas, Malabo, Maambog, Malbog and Cusay Creek from the east; by Bambang, Tigbao and Tagbakin Creek from the west; and by Subaan and Singulan River from the south. The lake has only one outlet, the Butas River, which flow north then heads east after the Lumangbayan River joins the river and empties to Tablas Strait at Barangay Lumang-bayan, Naujan.

The lake, approximately 8,125 hectares (20,080 acres) in area, is the main feature of the protected area classified as a national park known as the Naujan Lake National Park (NLNP). The lake and adjoining areas totaling 21,655 hectares (53,510 acres) was declared a national park on March 27, 1956 through Proclamation No. 282 by President Ramon Magsaysay.

NLNP covers twenty-four (24) barangays under the jurisdiction of four municipalities, namely:

The Park has existing facilities for tourism and recreational activities which include picnic tables and a house/quarter located at Minglit Point. A guard house is located at Brgy. Malabo in Victoria town and a watch tower is located at CENRO in Pasi, Socorro. The park caters recreational activities such as boating, picnics, bird watching, educational tour and scientific research. Also, the park is considered the widest breeding place of marsh birds and having a quarterly Biodiversity Monitoring System (BMS) which include bird counting.