This seed has everything ice. Ice plains, ice mountains, frozen rivers, ice spikes, and cold taiga. You spawn right in the middle of ice plains with some ice mountains around you. The highlight of the seed is the ice spikes, though. You’ll have to travel to reach them.
This snow covered Minecraft seed for the PC/Mac spawns you in a massive Frozen-esque world that switches between ice plains, ice mountains and cold taiga only interrupted by frozen rivers cutting it all and occasional ravines with snow dusted floors. We explored in each direction and the snowy ice plains/mountains and cold biome landscape extended in all directions with no sign of letting up.