Biome · Twilight Shelf

Stone Ribs

Depth
410–565 m
Otter hull needed
Mk II hull (600 m)
Size
8.7% of the caldera
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Long stone ridges run one after another in concentric arcs, like ribs. Deep troughs lie between them, and groves of sponges grow on the slopes.

The troughs hide the two best-known finds in the caldera. Titan’s Rest is the skeleton of a full-grown leviathan, and you can sail through its ribs. The Wreck of the Meridian is a survey ship, broken in two.

The Meridian lies right under the wall of your home port, Coral Haven: you can see its lamps as soon as you leave the moon pool.

What to find here

Neighbouring biomes

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