When you're in Sabah, visit the world heritage site, Kinabalu National Park and climb Mt Kinabalu!  You will need to do a booking to climb the mountain at least 6-8 months in advance as the compulsory overnight stay at the lodge on the 11,000ft sells like hot cakes! You can make your reservation by calling Sutera Sanctuary Lodges, the company that manages the climbing and accommodation packages at the Kinabalu National Park.  The number to call is (6 088) 243 629 or you may log on to http://www.suterasanctuarylodges.com.my for more information.  And if you're a hardcore nature buff you would love to see more of Borneo's nature and wildlife, try out Danum Valley, the Maliau Basin,Tabin Wildlife Reserve or the Kinabatangan River.  It's worth it! And if your dream is to get a PADI's diving license, try it here in Borneo.It seems cheaper obtaining the dive license here. We have one of the most beautiful diving sites in the world --Sipadan and Layang-Layang Islands being two of the most recommended dive sites.