photo: typical second-year ice; eroded surface; poorly connected puddles; puddles colors; thaw holes (Environment Canada)
Old ice which has survived only one summer's melt. Because it is thicker and less dense than First year ice, it stands higher out of the water. In contrast to Multi year ice, summer melting
produces a regular pattern of numerous small Puddles. Bare patches and puddles are usually
greenish-blue.
