We had a great time at Earth Mountain! We decided to camp in the middle of the week, which resulted in no one else being at the campground. The walk from where you park your car to the camp isn't too far, but I'd recommend a wagon or something similar to carry gear up to your spot (on a forested hillside). We spent three days here. It was immensely interesting to learn and see how permaculture farming works. They're also a fairly low-waste farm; nearly anything that can be repurposed or reused was.
There is a nice outdoor area with tables, kitchen ware you can borrow and a wood burning stove (we had fun cooking meals on this a couple of times). A tiny greenhouse sits on the side of this area and opens out to a kid's play area that has swings, hammock swings, stuff to climb on, etc.
While there, we visited with most of the animals. Met Tiny Tim (a goat), several cats, several dogs, chickens, a turkey and some ponies. My son named one of the black chickens Crimson. We went on some hikes, picked some vegetables and our son was able to join a group from the local area learning about the farm, animals and the like, which he seemed to enjoy.
So, if you have the time and want to do something kind of unique, I'd highly recommend Earth Mountain. You can camp, learn and explore. The hosts and residents are all very nice people and will answer any question you can think of that relates to the farm or surrounding area.