Harry awakes alone on an ice floe. Kripik and Iva escape on an ice floe. The bridge was destroyed in 1603 by an ice floe. A drift station is a temporary or semi-permanent facility built on an ice floe. His receiver then detects the homing signal, directing Gant to an ice floe. They prefer to rest on ice floe and will move farther north for denser ice. Sharp and Carey also tested the ice floe hypothesis by corralling selected stones. Cinematographically, the ice floe scene is an early example of parallel action. The ice floe can form a dam that floods the areas upstream of the jam.