Coldsnap Hollow is a location in Breath of the Wild. Just west of Hebra Peak, the "Hollow" comes from the fact that it is at a much lower elevation than the Hebra Mountains which almost entirely surround it, and from the rock formations that cover part of it.
Breath of the Wild
Like the rest of the Hebra Mountains, Coldsnap Hollow is bitter cold; this requires Link to have level 2 Cold Resistance, such as by wearing the Snowquill Set. There are a variety of cold-weather enemies and wildlife throughout the Hollow and surrounding area.
Right at the center of the hollow, Link will encounter a Frost Talus which is part of the Face the Frost Talus side quest given by Gesane at the first connecting bridge leading to Rito Village. Along the perimeter, there are numerous wind tunnels where Link can use his Paraglider to reach the higher elevations.
At the northwest end of the Hollow, there is a massive ice block, that Link can melt with a fire based weapon, which has a Black Moblin hiding behind it. Just to the west of it, there is a smaller ice block that holds a treasure chest with five Ice Arrows.
Nearby Korok Seeds
Melt the ice, examine the fairy lights.
Fighting a Frost Talus.