Before visiting Khao Yai, be prepared for unpredictable weather. It can be quite rainy during the monsoon season (May to October), so pack appropriately. The park is best explored with a guide if you want to spot wildlife or take a detailed hiking tour. While it’s possible to drive through the park, be cautious of animals crossing the roads, especially elephants. If you’re staying overnight, there are accommodation options nearby, ranging from budget to mid-range hotels and even camping areas for a more immersive experience.

Khao Yai National Park is about a 3-hour drive from Bangkok, making it accessible for a day trip or a longer stay. The easiest way to get there is by car or private taxi. Alternatively, you can take a bus from Bangkok’s Mo Chit Bus Terminal to Nakhon Ratchasima and then arrange a taxi to the park. There are also organized day trips from Bangkok that include transportation, guides, and activities in the park. If you prefer public transport, the journey may take longer but is still a feasible option for visitors on a budget.

The best time to visit Khao Yai National Park is during the dry season, from November to February, when the weather is cooler and ideal for hiking and wildlife spotting. The park’s popularity peaks during these months, especially on weekends, so consider visiting during weekdays for a quieter experience. If you're interested in birdwatching, the rainy season (May to October) is also good as it brings out different species, although trails can be slippery. It’s recommended to avoid the park during the hot summer months (March to May) as temperatures can soar.

Khao Yai National Park makes for an excellent day trip from Bangkok, thanks to its close proximity and variety of activities. Start the day with an early drive to explore the park’s iconic waterfalls, like Haew Suwat, before taking a hike on one of the many trails. You can visit the park’s observation points for sweeping views and wildlife spotting. If you prefer a more relaxed trip, enjoy a picnic by one of the park’s lakes or sign up for a guided wildlife tour. After your visit, stop by local markets for fresh produce and souvenirs.