Snowy Depths

I'd like to see an update for snowy biomes and caves. It would be cool to have deep snowy caves filled with ice, snow, icicles, stalagmites, and ice spikes. These caves could contain frozen rocks and ores, large icy caverns, and frozen lakes. Cracked ice that breaks if you stand on it for too long, with freezing water underneath, would also fit snowy caves well. To add more atmosphere to snowy biomes, rare snowstorms that reduce visibility could be added. It would also be great to see frozen traveler camps with chests and campfires that rarely generate in mountains or near entrances to icy caves.