A small amount of cannabis and 100 cannabis seeds were found at the second location, but no people.
Detective Senior Sergeant Malcolm Inglis said the raids were sparked by the arrest of a 22-year-old male English tourist on Sunday night, on allegations he was selling LSD and Ecstasy at a Queenstown bar.
Inglis said Otago Lakes-Central Police would continue to target people in their communities who sold drugs and created community harm.