Call ahead for tour info. (830) 216-7182 ext. 104. We hadn't called ahead but joined a couple of school groups who were there and saw all the activities.
My wife was amazed at the suction power of a little calf when she was bottle-feeding him and tried to take the bottle back. Off came the top. The tour was informative for my 'city girl' wife who wasn't aware of how the milk was processed and bottled and also the differences in milk from an all Jersey cattle herd versus most other breeds.
They have a restaurant, gift shop and miniature golf course on sight. There is a charge for the food and milk bottles for feeding the animals. We were not asked to pay anything for our tour.