There are even tigers , clouded leopards and bears living here. A unique experience awaits you at dusk , when you see more than two million bats fly out and leave their daytime home in the caves.
                         The area around khaoyai ("Big Mountains") rises from 400 m to 1351 m above sea level , and it is advisable to bring along a pullover/sweater. Temperatures are considerably lower than those of Bangkok . Especially during the winter months from November to February it can be cool at night. From December to May there are  huge numbers of flowering trees and shrubs , in addition to wild orchids and other  rare plants which can be found only here.
                          Winter is also the best time to spot wild elephants. In February birds come into full song with the onset of the mating season , although you can spot migrant winter birds from further North until May. From March to May is the warm season and many trees are in flower. In June the rainy season starts and normally lasts until the end of september. From the middle of June up to the end of July many wild orchids are in bloom.