A Mon Calamari submersible a type of underwater craft that was a common way of getting around the oceans of Dac. Cilghal used one to transport Leia Organa Solo to Gial Ackbar's residence during his self-imposed exile. As with many Mon Calamari vehicles, no two were alike. The typical one was covered in an iridescent surface resembling fish scales. A typical submarine cost 18,000 credits new, or 7,000 used.
There were a variety of different models and sizes of submersible used by the Mon Calamari on Dac, such as the Calamarian minisub used by Luke Skywalker and Admiral Ackbar to locate the Glove of Darth Vader during the Trioculus affair. Some variants of the class had two large grappling arms attached to the main body, while a military model also existed, which was equipped with a torpedo launcher.
A notable example was the Elfa, which belonged to a Yarin harbormaster at Crystal Reef. It was used by the Jedi Cilghal, Jacen, Tenel Ka, Zekk, and their companion Anja Gallandro to destroy a hidden stash of andris spice beneath a polar ice cap on Dac in 24 ABY.
- The Glove of Darth Vader (First appearance)
- Dark Apprentice
- Young Jedi Knights: Crisis at Crystal Reef
- The New Jedi Order: Destiny's Way