English: Monkey-Rope Bridge, Boulders, Rock formations, Natural forest-hiking trails, Forest trees and Fish ponds (Sitio Madlum, Sibul Springs, San Miguel, Bulacan, Biak-na-Bato National Park); Sitio Madlum River; Boulders, Natural forest-hiking trails, Forest trees and Fish ponds (Sitio Madlum, Sibul Springs, San Miguel, Bulacan, Biak-na-Bato National Park) in Barangay Sibul Springs, beside Biak-na-Bato, San Miguel, Bulacan; Madlum 15° 10.212N 121° 04.973E ; Bamboo rafts, Bulacan State U officials dismissed due to the August 19, 2014 drowning of 7 students; from the Madlum Cave to have reached Mount Manalmon, the huge white boulders, beside Mount Gola farther left, is Mount Arayat in Pampanga; Bridge Load Limit, 10 persons, Presidential Proclamation No. 401, April 11, 1989, Madlum Caves, beneath, beside Our Lady of Lourdes Grotto, Bayukbok I Cave and Bayukbok II Cave; Hidden paradise natural wonderland known as the “Three Ms” – Mount Manalmon, Madlum River and the Madlum Cave including its novel rock formations, huge white boulders; ‘Diwatas’ of Biak-na-Bato the “lawudnun” dwell in bodies of water; the “digkusanun” who drift in the air, mischievous, menacing, and a caster spells, parts of the Biak-na-Bato National Park, Republic of Biak-na-Bato Protected areas IUCN category V (protected landscape seascape), Breast-shaped hill Mount Susong Dalaga and Tilandong Falls are also popular attractions inside the 658.8497 hectares National Park under the jurisdiction and located in both Municipalities of Doña Remedios Trinidad, Bulacan and San Miguel, Bulacan along the Sibul Springs-BiaknaBato, San Miguel, Bulacan Farm to Market Road interconnecting with and from the Salangan-Santa Rita Bata-Santa Rita Matanda-San Juan-Tibagan-Pulong Bayabas-Pacalag, San Miguel-Buhol na Mangga, San Ildefonso, Bulacan National Road (accessed along and from the Maharlika Highway (Cagayan Valley Road, San Miguel, Bulacan section) of the Pan-Philippine Highway, also known as the Maharlika "Nobility/freeman" Highway or Asian Highway 26, Cagayan Valley Road).