It's about halfway between Udon Thani and Nong Khai, roughly a 65 km journey from either city. You have lots of chances to take photos, and you get an English brochure when you arrive. Expect to take between 1-2 hours of walking around, and bring plenty of water - the only shade around is from the rocks themselves!
Like most Thai national parks, a dual pricing system is in effect - tourists like us pay 100 baht while Thai nationals get in for 20 baht. For the extra cost, I'd expect there to be better translations, or at least signs that don't look like they were abandoned a decade ago. Worse, the signs that remain look cheaply done, and fail to explain the intriguing legends that turn the rocks into a set piece for the story.
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