A World War II torpedo depot on Mount Erice, on the island of Sicily

The Regia Marina (Royal Navy) of Italy was a naval force created in 1861 and which in 1946 gave rise to the current Marina Militare Italiana.

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During World War II, the Royal Marina was one of the most powerful naval forces in the world. According to the Marina Militare, at the outbreak of that war Italy had 6 battleships, 12 light cruisers, more than 100 destroyers and torpedo boats, and a huge force of more than 100 submarines, an enormous force that was, however, hampered by its weaknesses, especially its lack of air support and the absence of modern radars and sonars.

Despite these shortcomings, the Regia Marina played an important role in the Mediterranean, with the island of Sicily being one of its strategic enclaves for controlling North Africa. The city of Trapani, in the west of the island, was a third-class base from which torpedo boats operated, for which there were certain logistical points in the surrounding area, specifically torpedo depots and a naphtha depot on Monte Erice, north of the city.

Yesterday, the always interesting Youtube channel Aventuras Entresierras (which I highly recommend you subscribe to) published a video exploring the old Regia Marina torpedo depots on Monte Erice, showing them from the outside and also from the inside (the video is in Spanish, you can activate the automatic English subtitles in the bottom bar of the player):

You can see some screenshots from this video here as a preview. Here, on the right, we can see one of the watchtowers at this former military installation.

The ruins of the living building of the old torpedo depot, where the men who served at this facility resided.

An emergency exit from one of the torpedo depots. The top and bottom steps of the access ladder have been cut away to prevent access.

One of the access doors to the old torpedo depot. In the video you can see the interior of this facility.