Khao Yai National Park Nakhon Ratchasima Thailand is one of the oldest and largest national parks in Thailand. It is a unique haven for wildlife and home to an incredible array of beautiful landscapes and stunning biodiversity. Visitors can experience a variety of outdoor activities including trekking, camping, mountain biking, bird-watching and wildlife watching. The stunning array of flora and fauna make Khao Yai National Park a great destination for nature lovers and outdoor enthusiasts alike.