The Ottoman Empire, after the revolution of 1866, founded a new prefecture (liva) that consisted of the current provinces of Apokoronas, Sfakia and Agios Vasilios. This prefecture was called Sfakia Prefecture and its capital was Vamos.
At position Pirgos of the village Gerani and within the boundaries of private property we meet the remains of the initally four-storey tower of Gerani. The small tower is believed to have functioned as a Medieval phrycotry to send messages by fire to other towers of the province of Rethymnon during the Venetian rule. Today only the first floor is preserved from the tower, as the two highest floors have collapsed.
The janissary Arif Mohoglou lived in Mohos (near Stalis) during the period of the Revolution of 1821. Mohoglou had built a fortress - tower, where his family lived.
Above the seaside settlement of Keratokambos rises the steep hill of Kerato, also known as Kastri or Vigla, on which the ancient city of Kerea is believed to have been built. Vigla also hosts the impressive cave Nychteridospilios (meaning Bat cave), which was used as a sanctuary during the antiquity.
Koules of Matala is located on the hill Kastri above the famous beach of Matala. The access is very easy, as its very close to the path that heads to the Red Beach.
The settlement Grimbiliana was a suburb of Kolimbari, near Kissamos, where feudal lords Gribilli lived. They had built a tower like a fortress for their safety and when the Turks conquered the island the family of Gribilli was Islamized so as to retain their privileges.
In the Mylopotamos province, one of the most mountainous in Crete, there were many fortresses. Among them are the Castle of Mylopotamos located in the village of Panormos and Panokastri near Agios Mamas. Panokastri or Pano Kasteli is situated in a rocky position above the village Kastri. This belonged to the family of the noble Alexios Kallergis from 1341.
The koule of Kalonyktis is located on the hill of Agiasmatsi on the outskirts of the village of Kalonyktis in the province of Rethymno. This large tower was built by the Ottomans after the Great Cretan Revolution of 1866, being part of the large network of towers - koules - for the control of the Cretan revolutionaries.