I feel like a jerk I should have been more descriptive. The park was all indoors, the cave was made of plaster or something. Everyone told me there was a bear in it so I never went in. It was like a small, cheaper physical whymsical if you know what that place was.
My parents used to take me there in the early 80's. It has a cave and a ball pit I think. Only problem is nobody I have ever talked to remembers it and now that I am older and living in Houston again I would really get a kick out of knowing where it was. Seemed like it was so far away back then.