Tomorrow I'll be flying off to the Kelabit Highlands, a plateau (1500 m) near the Indonesian border.
Most people fly there. The other alternative is a combination of buses, taxis and boats which can take you practically the whole day. The latter way is undoubtedly more adventurous but you might be called upon to pull or push the boat!
Since internet access might not be available, I'll blog about the Kelabit trip on my return on Wed 15 Sept.
I'm looking forward to flying on the MASwings' Twin Otter, a plane that can take only about 19 passengers!