The skerry of Vars is in Thassa, two pasangs offshore Torvaldsland
It is roughly a hundred feet square
Rough but on the whole flat.
The skerry rises fifteen to twenty feet from the water
Grayish rock, igneous, bleak
"Where is the Skerry of Vars?" I asked.
"It is five pasangs to the north," said Ivar Forkbeard, "and two pasangs
offshore."
"Take me there," I said.
"Very well," he said.
...
The Skerry of Vars is roughly a hundred foot, Gorean, square. It is
rough, but, on the whole, flat. It rises some fifteen to twenty feet
from the water. It is grayish rock, bleak, upthrust, igneous,
forbidding.
Marauders
Tiny rock promontory of eight or nine feet wide foots the skerry "Tarl! Tarl Red Hair!" I heard call. It was Ivar Forkbeard. I could see
the longboat, four torches uplifted in it, men at the oars, putting in to
the skerry.
I stood on the surface of the skerry.
Then I went down to meet the boat, finding my way among the rocks.
On the tiny rock promontory, footing the skerry, some eight or nine feet
in width, I met Ivar Forkbeard, and his men With him were Gorm, Ottar and
Wulfstan of Torvaldsland.
Marauders
NOTE - the skerry is described as "igneous" which means either resembling fire
or resulting from & related to the extrusion of magma, volcanic
activity