Watch day turn to night as you descend into the mysterious recesses of Theopetra Cave. Armed with a reliable headlight and a taste for adventure, there's no telling what you might discover down there.
You're spoiled for sightseeing choice when in Kalabaka. Theopetra Cave is an ideal place to start here, but there are loads of other worthwhile attractions to discover. Monastery of Agia Triada, Moni Varlaam, and Church of the Assumption of the Virgin Mary are close to the natural underground attraction and will round out your day nicely.