I highly recommend Sylvan Rocks. We climbed at Custer State Park for the 4 hour package with a family group of 11 people (ages 9 to 47) and our guides (Lindsay, Chris, Ben) expertly trained and supported us all in climbing. They took time to patiently outfit our group, trained us in climbing techniques, encouraged climbers, and coached those who wanted to learn belay technique. I noticed how they used our names and gently provided support when climbers were stuck. The experience left us with an interest in climbing again!