Because of the limited facilities available within the park, the best way to see it is by arranging to be part of a longhouse tour, where you'll get a chance to meet natives of the Iban tribe and discover how they live in their communal house and how they interact non-destructively with nature.
How to Batang Ai National Park, By Road to Batang Ai National Park is a few hours' drive from Kuching. If you go with a tour, your transport is included.