Redlake

I didn't know that, fairly new to the game but definitely something I'll try later if I'm lucky

Yeah, not unless they find a glacier I guess, or any biome where ice spawns naturally.

Before the 1900s, Ice was harvested from lakes, stored in specific buildings, and insulated with straw. My suggestion is to use a saw (maybe carry them with tongs too) to be able to collect ice blocks and craft them with dry grass into a placeable block that cumulatively lowers the temperature in the cellar, making the food or other perishables last longer