Although small, this island situated to the south of Nisyros captures the imagination of anyone interested in paleontology, for here there once lived the prehistoric dwarf elephant, whose skeletons were found in one of its caves.

The capital of Tilos is Megalo Horio (literally Big Village), located in the interior to the north of the island. It is built like an amphitheatre on a hillside topped by a ruined castle erected by the Knights. The village occupies the site of the ancient town, the remains of which can still be seen scattered among the houses.

Tilos's main port is Livadia, southeast of Megalo Horio. It has a long, pebbly beach and you will find all the tourist facilities here. The island's best beaches are at Livadia, Agios Antonios, Plaka and Erysto.