Bulacan: See
Bulacan has a diverse array of attractions ranging from the natural to the historical and architectural. Nearly every town has a Spanish era church, the most famous of which is Barasoain in Malolos, where the Congress of the short-lived First Philippine Republic convened.
Contrary to perceptions of Bulacan as a flat province due to its location in the Central Luzon plains, the province actually has lots of hiking sports due to its position along the slopes of the Sierra Madre. The most famous of these attractions is Biaknabato National Park in San Miguel, a sprawling region of forests, caves, mountains and springs that hosted the headquarters of the Biaknabato Republic, a proto-state that was the precursor of subsequent independent Philippine governments.
Bulacan also pioneered the concept of massive swimming resort complexes complete with wave pools in the Philippines, which attracts hordes of tourists from Metro Manila unable to build their own swimming pools. Many of these resorts are concentrated in San Rafael, Pandi and Calumpit.