Like Turn Key, I don't do any climbing, but I do like to hike, and Mineral Wells has some trails you might like. Within the park are numerous trails, especially on the west side of the lake. Then there is a rails-to-trail trailway stretching all the way from Mineral Wells to Weatherford, with a connection to the park. Although I've hiked a section of it, I think it really is better for biking.
You can see a review I wrote of the trailway and the park trails at
Lake Mineral Wells State Park and Trailway. My moniker on that site is "kcameron".
Hope you enjoy,