After our hike up Old Baldy, Chris wanted something more mellow and less terrain oriented. The Frio Canyon Trail takes a loop around the prairie portion of the north end of the park. We hiked it after dinner one evening and it was not busy at all, which made for a pleasant walk. There was a section on the west side of the park, near the road, that felt a little bit like being in south-central Texas, near Brenham, reminding me of the Somerville Trailway; it had a slight bottomland/scrubby marsh feel to it though it certainly was not wet at the time we hiked.
The hike was peaceful, exactly how an evening hike should be. The light just right. The air—probably a little warm but not bad. Definitely a trail that probably gets biked on more than hiked. A great place to look out for deer, turkey, and maybe even feral pigs!