Endau-Rompin National Park, Johor/Pahang

Straddling the Johor-Pahang border, Endau-Rompin protects 870 square kilometres of lowland and hill dipterocarp forest that represents the most important remaining habitat for the critically endangered Malayan tiger south of Taman Negara. Its river systems are home to kelah mahseer and temoleh fish of extraordinary size, and its interior waterfalls are accessible only via multi-day river journeys that reward the effort with complete wilderness immersion.