An adventure park on 24 hectares of the sierras five kilometres out of town, built around old stone quarries: zipline circuits, Tibetan bridges, climbing and rappelling on the quarry walls, walks, and a course for children. Open weekends and holidays, and daily in the school holidays; book ahead, as the circuits run at set times.
The WhatsApp is the one Tandil's municipal tourism site gives for them, which asks you to book there.