The production crew attempted to use money saving techniques when it came time to film scenes in locations other than the usual spots—the Kent farm, Luthor mansion, Smallville High, and the Talon. For instance, the Kent barn was redesigned as Dr. Hamilton's lab for the final climax in "Duplicity". When it came time to create the Kawatche caves for "Skinwalker", the production crew built on a sound stage in Vancouver. The team created movable pieces, which allowed them to rearrange the set, and give the effect that it was larger than it really was. The production team also used sandstone to give the impression that the caves may have once been a riverbed, and thus allowing the crew to not have to worry about putting a ceiling on the set.