I went today on "Family Day" (open to the public for first 150 people) with my 16 mo old. It was great only having to pay for my ticket ($7) and hers was free. For those with young ones like mine, it may be a little difficult to keep them settled during the initial information session (around 20ish minutes), but keeping snacks handy is always good bribery. The parking is located very close to all of the action, so feel free to keep a cooler/diaper bag in your car that you can return to get and only worry about having the essentials on you. I kept my 16 mo old in a carrier and wore her on me during the butterfly exhibit portion, which worked out well in preventing any clumsy falls onto unsuspecting butterflies! The rest of the time they have a great open field area that includes a rock-climbing wall, tunnels and slides, picnic tables, and even a misting area for hot summer days. They also had buckets of frisbees, balls, and jump rope, and you could pay to feed their goats too. It's definitely worth the $7 investment! I think I may wait to bring my daughter back when she's a bit older (3 or above) as at that point she should be old enough to manage holding the butterfly sticks (and walking around more carefully) on her own.