It's really exciting to walk in this forest and meet the rock formations while listening to the guide's explanations. Because yes, I highly recommend you visiting Phua Phra Bat Historical Park with a guide. The visit will be more interesting and he will show you details that alone you will certainly miss. The park is quite large, count 1:30 to see the essentials, 3 hours for a more exhaustive tour. I also invite you to take the time to visit the Wat Phra Phutthabat Bua Bok 2 kilometers from the entrance. Its chedi with an uncommon architecture and colorful atypical decorations houses a Buddha footprint.