Mount Natib with its 6 by 7 km (3.7 by 4.3 mi) wide forested acorn-shaped caldera is located in the middle of the park. Activities in the park include nature viewing, bird watching, and trekking to its several peaks and waterfalls. The park is located 101 kilometres (63 mi) from Manila, its mountains can be seen across Manila Bay from the city.
Bataan National Park is covered by tropical jungle and mountain terrains with significant geological features such as rivers, springs and waterfalls. Pasukulan and Dunsulan falls are found within the park, as are important species of flowers and ground orchids. It is also home to several wild monkeys and other varieties of insects and birds.