The Navigators Tarot of the Mystic SEA is a deck for occultists who sojourn that Mystic Sea, “charting a course between sharp, fateful rocks and perilous cliffs, to harbours’ grateful rest. And when the journey’s done, sought other quests. . . . A Library of books set in the heavens, stretching beyond all logic, Infinite. . . . The Navigator scryed to learn this source. Hermes revealed the Holy Cabalah. The archetypes from that eternal base, create clear symbols which, in turn, embrace this Tarot of the Mystic SEA.” (poem accompanying the deck, by Julia Turk)
In most places, SEA is all-caps, which suggests to me it’s an acronym, while in other places, there’s a straightforward reference to the Thoth-Hermetic Mystic Sea. I believe I’ve combed through the LWB thoroughly in search of what SEA stands for, but couldn’t find it. The old Aeclectic Tarot forum came to the rescue. According to this thread, the Mystic SEA is the Mystic Society of Enochian Anchorites (SEA), anchorites being essentially a hermit or solitary ascetic of a religious devotion.
In this deck, Key 8 (though the Majors are unnumbered) is Strength and Key 11 is Destiny (Justice) with the keyword “equilibration,” not to be confused with the deck’s Key 10, Fortune, with the keyword “rotation.”