Biak-na-Bato National Park National Park

Protected park with caves, rivers, and historic sites

A Philippine national park preserving caves, river gorges and historic sites tied to the 1897 revolutionary headquarters; visitors come for hiking, cave exploration and history.

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Biak-na-Bato National Park at a Glance#

Address: Biak-na-Bato National Park, San Miguel, Bulacan / Central Luzon region, Philippines

Hours: Daylight hours; visitor services vary by local management

Admission: Entrance fees apply; check the Philippines Department of Environment and Natural Resources or local park office for current rates

About Biak-na-Bato National Park#

Biak-na-Bato National Park is a protected area in Bulacan province in the Central Luzon region of the Philippines that conserves karst plateaus, caves, and river valleys. The park is notable for its network of caves and rugged upland terrain as well as its role in Philippine revolutionary history.

Historically the cave complex was used by Emilio Aguinaldo and other revolutionary leaders in the late 19th century; the area is associated with the Pact of Biak-na-Bato of 1897. Today the park is visited for spelunking, hiking, and historical interest.

The park spans upland sections of Bulacan province and is accessed from towns in the surrounding lowlands; it protects both natural karst features and cultural-historical sites.

  • Historical significance: Site of the 1897 Pact of Biak-na-Bato negotiations and used as revolutionary headquarters by Emilio Aguinaldo during the Philippine Revolution.
  • Park purpose: Declared a national park to protect both its natural karst landscape and its role in Philippine history; visitors come for caves, hiking, and history interpretation.

What to See#

  • Aguinaldo Cave: A network of caves used historically as hideouts and headquarters during the Philippine revolutionary period, most notably Aguinaldo Cave which is associated with Emilio Aguinaldo.
  • Plateau and river valleys: Extensive upland terrain and river valleys that form the park’s natural attractions, including karst formations and forested plateaus.

How to Get to Biak-na-Bato National Park#

Biak-na-Bato is in central Luzon. From Manila, drive north on the North Luzon Expressway (NLEX) and follow regional roads toward San Miguel, Bulacan; travel time is roughly 2-3 hours depending on traffic. Public buses to San Miguel are available from various terminals; arrange local transport to the park entrance.

Tips for Visiting Biak-na-Bato National Park#

  • Hire a local guide for rainforest trails and historical cave sites - guides know safe routes and local history.
  • Bring insect repellent and rain protection; sudden tropical showers are common year-round.
  • Combining a visit with a stay in nearby towns like San Miguel helps with logistics and local transportation.

Best Time to Visit Biak-na-Bato National Park#

A national park protecting karst landscapes and historical sites linked to the Philippine revolutionary era - best visited in the cool, dry season November-February.

Cool, dry season
November-February · 20-28°C
Most comfortable for hiking and exploring caves.
Shoulder season
March-May · 24-34°C
Hotter and more humid, but fewer crowds; bring water and plan early starts.

Weather & Climate near Biak-na-Bato National Park#

Climate

Biak-na-Bato National Park's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 20°C to 33°C. Heavy rainfall (2517 mm/year), wettest in August with a pronounced dry season.

Air Quality: AQI 58 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
38°
Warmest Month
16°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 20° - 28° 24° 33 mm overcast 87% 1.7 m/s 1.5 very high 11.2h
February Excellent 21° - 30° 25° 21 mm partly cloudy 84% 1.8 m/s 1.9 very high 11.5h
March Very Good 22° - 31° 26° 34 mm partly cloudy 80% 1.8 m/s 2.2 extreme 11.9h
April Very Good 23° - 33° 31° 62 mm some cloud 77% 1.6 m/s 2.5 extreme 12.4h
May Good 23° - 33° 32° 213 mm partly cloudy 80% 1.7 m/s 2.4 extreme 12.7h
June Acceptable 23° - 31° 31° 326 mm overcast 85% 1.6 m/s 2.3 extreme 12.9h
July Good 23° - 30° 27° 471 mm overcast 88% 1.9 m/s 2.2 extreme 12.8h
August Good 23° - 30° 27° 478 mm overcast 90% 1.9 m/s 2.1 extreme 12.5h
September Good 23° - 30° 27° 398 mm overcast 89% 1.3 m/s 2.1 extreme 12.1h
October Good 23° - 30° 26° 230 mm overcast 89% 1.8 m/s 1.8 very high 11.7h
November Good 22° - 29° 26° 151 mm overcast 90% 1.8 m/s 1.5 very high 11.3h
December Very Good 21° - 28° 25° 100 mm overcast 90% 1.9 m/s 1.4 high 11.1h