First year ice
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graphic
photo: thin first-year ice or grey-white fast ice; note the wave in ice ahead of the ship,
this is due to the ship's mass and deep draft (32 ft) (Environment Canada)

graphic
photo: medium first-year ice; frozen puddles; ridges; snow (Environment Canada)

graphic
photo (150 ft): thick first-year ice; blind lead behind; puddles (Environment Canada)

Sea ice of not more than one winter's growth, developing from Young ice; thickness 30 cm - 2 m. May be subdivided into thin First year ice / white ice, Medium first year ice and Thick first year ice.