The Tower is what is left of an old cable car system that brought iron ore from a mine in the mountains to waiting barges off shore. The rock and concrete piling is still in tact with many holes for eels and various fish to live in. There is also the remains of the crane arm sunk in about 30 feet of water. A short distance away is a sunken barge that presumable was used to transport the ore. We saw Moray and Conger Eels, several octopus, Wrasses, and Scorpionfish along with many typical Mediterranean fish. Overall, this was an interesting site with vis as the primary challenge. Bring a compass.