A steep, isolated island of rock, separated from a headland by the action of waves, as when the overhanging section of a sea arch is eroded.
A small, pillar-shaped, rocky island formed by wave erosion through a headland near a sea cliff.
a coastal rock island or pillar that has resisted the erosional force of waves
a pinnacle of rock which is surrounded by the sea at high tide
a rock on or near the shore that presents a challenge to climbers
usually steep-sided, eroded remnant of coastal cliff
Sea stacks are blocks of erosion-resistant rock isolated from the land by sea. more details...
An isolated tower of land just offshore, disconnected from the mainland by the collapse of a sea arch.