Ground blind

[Ara D.]

A ground blind would be neat. Maybe a shelter like structure to build but it adds a a massive bonus to stealth if your (H)ideing in it.

[Sami]

I reckon those as more modern inventions. In the game you can already hide better if you stay out of the open, near trees and such so the terrain already helps to hide. And staying put and not moving also as well.

[Buoidda]

Not really. These are stone, but I've seen white fabric ones too, on sleds. https://nunamitcorp.com/inuit-seal-hunting-blinds

In urw, I've used rows of shelters as quite effective seal blinds on land. They might even wander next to you. (You have to be behind the shelter.)

I've actually thought of suggesting allowing building shelters and kotas on ice for the same reason: they would automatically deconstruct themselves when the ice breaks under their weight in spring.

EDIT: wrote a quick seal-tunting guide: