Diablo II/Golden Bird

Spider Forest
Waypoint, close to the entrance to the Arachnid Lair

Arachnid Lair
Optional

Ssark the Burning
Super Unique Flame Spider (Extra Strong Cursed), a Giant Spider guarding the chest containing Khalim's Eye

Great Marsh
Waypoint

May be optional if the Spider Forest connects directly to the Flayer Jungle