"Submerged rocks" refers to rocks or obstacles that are hidden beneath the surface of water, making them difficult to see or avoid when navigating by boat or swimming.
Sentences with «submerged rocks»
The reaction could have occurred on submerged rocks or in moist areas near a volcano. (newscientist.com)
There is a rocky point that forms a right which breaks over submerged rocks. (coastalspanish.com)
If you surf the left, be aware of one big submerged rock. (mi-ola.com)