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  ===Filming locations===
  The episode introduces Yunkai, based on the Moroccan city of Aït Benhaddou.
  The production continued to use Morocco to depict the Slaver's Bay. While the coastal city of Essaouira had doubled as Astapor, this episode used the city of Aït Benhaddou (near Ouarzazate) to depict Yunkai. Daenerys's camp was built in the nearby location of Little Barrage.
  The scenes with Jon Snow and the wildlings were filmed in the forests around Toome, in County Antrim, Northern Ireland. The scenes in Northern Ireland were filmed six weeks before the production moved to Iceland to film several scenes for the previous episodes.
  Due to the legal restrictions and the difficulties involved in the transport of large animals, the scenes with the bear Little Bart had to be filmed in the USA. Although it was only used for a single scene, this was the fifth country where the production filmed during the season (after Northern Ireland, Morocco, Croatia, and Iceland). The actual bear-pit set was built in Northern Ireland: the bear was filmed where it was living in Los Angeles, interacting with its trainer, and was later digitally added into the footage from the bear pit set in Northern Ireland.