Rainforest is the dominating natural vegetation type in much of tropical Asia, especially before humans began to develop the region. It ranges over a huge area; from Bali, then west through Java, Sumatra, north into Borneo, peninsula Malaysia, Thailand, the Philippines and up into southern China, then west into India and Sri Lanka.
Within that large zone it obviously varies in plant and animal composition, particularly with many of the spots being separated by ocean in our current interglacial. Additionally, within that moist forest, there is variation in altitude which results in many vegetation communities, from steamy lowland jungle on the coast, to stunted cloud forest in the mountains.
There are so many lodges and nationals parks to see the Asian tropical rainforest.
In Bhutan, there is: Jigme Dorji National Park, and Lampelri Gardens. In Sri Lanka, there is: Horton Plains for some highland rainforest of Sri Lanka, Kelani Forest Reserve, Kithugala, and Sinharaja Reserve.
In Cambodia there is: Angkor Wat, Keo-Seima Reserve, Nature Lodge at Senmonorom. In Thailand there is: Baan Maka Nature Lodge and Samarn Bird Camp which are near Kaeng Krachan National Park and Pala-U Waterfall, Thailand. There is also: Doi Inthanon National Park, Our Jungle House, great accommodation near Khao Sok National Park, There is also: Khao Yai National Park.
In Malaysia there is: Taman Negara National Park. In Malaysian Borneo there is: Bako National Park, Kinabalu National Park HQ, Mesilau, Poring Hot Springs, and Sepilok. In Singapore, there is: Singapore Zoo. In Indonesia there is: Bali Barat National Park, Bukit Lawang & Gunung Leuser National Park, in Sumatra, Krakatoa, and Tanjung Puting National Park,Kalimantan in Borneo.