Terminus Cave - Pokemon X and Y Guide - IGN

Terminus Cave is an optional cave in mountain Kalos. It can be accessed from Route 18. Like many other caves in Kalos, you can find Pokemon simply by walking

Frost Cavern - Pokemon X and Y Guide - IGN

Frost Cavern - Pokemon X and Y Guide - IGN

Frost Cavern - Pokemon X and Y Guide - IGN

Frost Cavern - Pokemon X and Y Guide - IGN

Frost Cavern - Pokemon X and Y Guide - IGN

Pokémon X, Part 61: Terminus Cave!

Terminus Cave - Pokemon X and Y Guide - IGN

Pokemon X Walkthrough 49 - Terminus Cave

Frost Cavern - Pokemon X and Y Guide - IGN

How to get Steelix in Pokemon Y - Quora