The Kickapoo Cavern State Park is one of the most primitive in that the park is fairly new (2010) to the public, does not have full ranger station resources and hours, limited (but awesome) volunteer staff, no gift shop, and located in the middle of nowhere! (23 miles from Brackettville and near the Mexico border). With this being said, the natural resources in this little 6300 acre nugget of Texas history includes a million+ bat colony, multiple cave system, hundreds of Texas birds, and other wildlife! The camp sites for tents do not have electricity, the water is a communal tap between pad sites, and there are just a few spaces overall. The spaces are semi private on the outside of the loop and no privacy on the interior. The bathrooms are two stall with only a single shower stall.
We stayed for two days/nights and enjoyed the experience. The night sky without city lights was excellent. The guided tour through the cave (moderate hiking required) was a two hour adventure with amazing sights, and the bat flight from the cave each evening at sun down is a life experience we all should see at least once! The bats are comparable to the colonies in the Austin area, however, at Kickapoo there are no crowds, barely a gate to separate you from the colony cave, and nearby wildlife seem unaffected, like raccoons who snacked on the fallen bats.
WARNING: The trip to the nearest town is 23 miles away. Do not risk running out of gas as there is not a ranger on site in the evenings and at night. Cell phone service was not operable in the park, but outside of the gates, closer to Brackettville, we were able to use our phones.
The park is in the process of receiving more funding from the State of Texas Park system, but for now, May, 2014, it is limited. I highly recommend this site for campers who know how to rough it, and plan ahead with supplies. Kids and pets are able to roam safely. Firewood for sale at the ranger station.
We loved Kickapoo!