The Gunung Mulu National Park in Borneo (near Miri) is a UNESCO World Heritage Site with caves and karst formations. The caves are home to over 5 million bats who exit the caves in search for food every evening in a spectacular way.
Ipoh is the apital of the state of Perak and the fourth largest city of peninsular Malaysia with a population of 760,000 (Metro area: 1.4 Mil). It is scenically located amoung karst limestone hills in the Kinta Valley, about 2 1/2 hours north of Kuala Lumpur. The city is somehow forgotten by most travellers in Malaysia, however it has a lot to offer with many colonial buildings and shophouses (it used to be a very rich city around the turn of the 19th century due to tin mining) and the nature (hills, caves) around. Among Malaysians it is known for good food like the popular Ipoh Chicken Rice.