::: Ancient City of Lyonnese off Cornwall Coast?

Found by Michael MacRae using Multimap Aerial Imagery for the United Kingdom.

The red arrow in the image to the left is pointing to the road-like feature. The sun has illuminated this area underwater and sub-surface anomalies are visibly apparent. Also notice the cell like features in the red rectangle outline. Possibly a submerged structure of some kind.

Lyonesse

Lyonesse is believed to be a land that was suddenly inundated by the ocean at the time of King Arthur. St Michael's Mount, off the Cornish coast is said to be part of this legendary kingdom which supposedly extended as far as the Isles of Scilly. (The Isles of Scilly are an archipelago of small islands off the southwestern coast of England near the entrance to the English Channel.) Lyonesse is also said to have been a hilly country and is sometimes associated with Avalon.

According to Arthurian legend, one of the signs of King Arthur's return will be that Lyonesse will rise from the depths again.                                     ...MORE