Submarine expedition visits B.C. glass sponge reefs - Action News
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British Columbia

Submarine expedition visits B.C. glass sponge reefs

Canadian Parks and Wilderness Society in partnership with Nuytco Research is examining the state of ancient glass sponge reefs in Howe Sound with a series of submarine dives over two days.

Rare sea sponges were thought long-extinct until reefs discovered in 1987