Icelandis is the fourth floor of SAOB. Teleportation access is acquired through defeating Droggrel the Golem Master of Vallenkor, by killing the boss and dealing 20% or more damage to the boss max base hp in the boss room

As with its name, this floor is ice-themed with monsters around the theme of ice.

This floor is notorious for the amount of killing that happens for the right to farm Floor 4's miniboss, the Alpha Icewhal.