sunless sea

• cavernLarge natural underground chamber
• undergroundBelow ground or countercultural
• abyssImmeasurably profound depth
• darknessTotal absence of light
• subterraneanBeneath earth's surface

Coleridge · Xanadu · depths · lightless · mysterious · voyage · ancient · echoing · black · fathomless · uncharted · cold · vast · silent · lonely · forgotten · eldritch · murky

• ColeridgeKubla Khan, ancient mariner, Xanadu, pleasure dome, albatross