Mounds of dark, cracked deep-sea pillow lava formations on a light sandy ocean floor.
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Pillow Lava
Pillow lava from a past eruption of Mauna Loa seen off the coast of Kona, Hawai‘i, during the 2026 ROV Shakedown expedition.
Credit

NOAA Ocean Exploration, 2026 ROV Shakedown

Related Expedition
2026 ROV Shakedown (EX2603)