“We now have a dog and Alistair is still the dumbest one in the party.” — Morrigan This article contains spoilers for Dragon Age: Origins. Click here to reveal them.
The boots can be found in the Haven Village Store in the iron chest in the first room a few feet from the door. The chest is locked at first, but if you get there after making the townsfolk hostile (by finding the bloody altar or killing the shopkeep), the chest will be unlocked. If you kill the shopkeeper, you will have to exit the building then re-enter for the chest to be unlocked. This only works for the iron chest, not the other locked chests in the store, which require a rogue to open.