How long should we spend usually at this place. I have a kid also 4 yr old. Will it be fun for him too?

I don't believe it would be a good place for 4 year old. However is fun for adults

I think the tour is about 90 minutes. It is located in a wooded area and has a picnic area. My dog had a great time so I assume a 4 year old would also. There is an out house and a washing area

Thanks Cynthia

It took us about 2-3 hours for short course. They have a minimum weight which I think is 70 lbs.