Currently the only option is to go to the ruins, as they carry out renovation works in the ruins.
The ruin Kaldiff is locaded at Mazzon, above Egna . This castle was probably built around 1200. Between the 16th and 18th century it was inhabited by the noble family Von Enn. However, unfortunately it decayed partially after a fire. Today, after remediation work, there are only remains of curtain-walls as well as some frescoes and mural paintings available.
Freeway A22, exit Egna/Ora, Egna, then locality Vill, direction Cavalese to the parking of the recreation zone Rio Trodenda, after the wooden bridge on your left take the road that leads you to the path below the ruin Kaldiff.