This attraction is an easy, one-day trip from Bangkok, but you'll need to have a car or hire transportation. There are lots of activities to appeal to the whole family, and, especially, the kids. They have ATV and go-cart options, the Flying Fox zip line, a skylift ride, a wheeled luge track, plus a couple of water activities and others. They also offer horse back riding which is somewhat of a novelty in Thailand. They limit some rides by age and height for safety reasons which is great. The rides are mostly gentle and not scary. Rides are reasonably priced.
For those that want to stay overnight, they have US style pioneer wagons, camping sites and they have a fairly new hotel just outside the park.