The Horse Teeth rock formations (609 m a.s.l.) south of the Castelchiaro ruin in Caldaro are a popular hiking destination.
Near the Castelchiaro ruin high above Lake Caldaro, some widely known rock formations enthrone the Monte di Mezzo ridge. The shape of these Horse Teeth (Rosszähne, in German - Denti di Cavallo, in Italian) is reminiscent of horse teeth: They represent narrowly standing pinnacles that provide a great view towards Bolzano and on Laives, Vadena, Bronzolo and Ora on one side of the Monte di Mezzo ridge, and Caldaro and Termeno on the other.
The round tour to the Horse Teeth starts in the locality of Kreit above Campi al Lago (Klughammer) in Caldaro and proceeds moderately ascending in 2.5 hours to the rock formations at 609 m a.s.l. and back again. The trail leads past the Castelchiaro ruin and the so-called "Hot air springs", caves out of which 25 degrees C warm air escapes the whole year round. Also some walls from pre-Christian times (hillforts) and a 500 year old cup-marked stone can be seen along the way.