Szelim Cave is a large karst rock shelter on the slope of Kőhegy just below the Turul Monument, a wide arched opening that early peoples used as a dwelling from prehistoric times. Archaeological digs have turned up stone tools, bones, and pottery shards spanning thousands of years.
The cave is free to enter and easy to reach on foot from the Turul. The view from the mouth across Tatabánya is excellent, and short marked trails continue along the cliff face. Sturdy shoes are useful as the path can be slippery in wet weather.