Ice foot

Ice foots often persist into the spring after much of the lake ice has been melted or blown into the lake ; thus they act as breakwaters, protecting the shoreline from erosion and deposition.

“At last we got out on to the ice foot overlooking the sea ice, and there were the Emperor Penguins,” Wilson wrote.

In the water near the surface swam Pteropocla and Copepoda, their forms and colour sharply defined against the clear “ice feet” (the extensive under-water parts of the swimming blocks).