Corack
A distinguishable outcropping of seaside crag and boulders, generally affixed at the openings of inlets or the mouths of rivers. Typically inhospitable to even micro-biological life and small mammals/insects.
"Hey Jerry, see those rocks over there?"
"Bro, that's a cluster of corack, do your research."
"Bro, that's a cluster of corack, do your research."