Located in a first-floor room accessible via stairs at the northwest end of the second floor of this cave is an Ice Rock, which will allow players to evolve their Eevee into Glaceon.
On the stalagmite on the right side of the corridor connecting the 1F and 3F staircases, accessed via the west area of 1F via the main exit of 2F (hidden)
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
The Frost Cavern appeared in the anime in Over the Mountain of Snow!. Team Rocket tried get shelter from there, but were attacked and subsequently blasted off by an angry Abomasnow. Ash and his friends soon arrived at the same location, and discovered that Abomasnow was merely trying to protect a sick Snover inside the cave. The group then proceeded to split up into pairs in order to find ingredients for a medicine needed to cure Snover. Ash and Serena ventured deeper into the Frost Cavern to find Spring Moss, while Clemont and Bonnie explored its surrounding areas for Mountain Marigolds. When the two medical plants had been found, Clemont was able to mix them into a medicine that cured Snover.
The interior of the cavern is made of dark blue ice as opposed to white ice from the games. The cavern also houses a hot spring at one of its deepest parts.
Trivia
On the player's birthday, a special kind of weather known as diamond dust will be in effect.