Submerged Tundra per WildFairy

One icy winter, a tsunami crashes upon the frosty banks of an arctic island. Frothy, frigid waters splash forcefully onto sub-zero layers of snow and ice, resulting in a gigantic avalanche! Shards of hard-packed snow slip layer-by-layer into the ocean, as if choreographed by the sea. Under the Big-Blue, frozen layers continue to disintegrate in icy waves. The sea pushes onward, though, seeking to crack another iceberg.