Aerial view of Khao Sok National Park, Surat Thani, Thailand

© Peetatham Kongkapech/Getty Image

A jungle adventure. Khao Sok National Park in Thailand

Today we're in a wildlife-packed wonderland with rainforests older than the Amazon—Khao Sok National Park in Surat Thani province, southern Thailand. Established in 1980, the park is home to diverse wildlife, including the Malayan tapir, white-handed gibbon, gaur, and hornbill, making it an ideal destination for anyone ready to swap city noise for jungle sounds. There are trails to tackle, kayaks to paddle, and, if you're fortunate, you might even catch a glimpse of the massive (and stinky) Rafflesia flower when it's in bloom.